Card Declined, Frozen Funds, High FX Fees: A Problem-to-Solution Map for Crypto Card Users

Why do crypto cards get declined or freeze funds?

Most problems trace to a handful of causes rather than anything wrong with the card. Cards usually decline because a merchant has temporarily reserved more money than the purchase actually costs. Surprise charges usually mean a free monthly conversion limit has run out. The map below matches each symptom to its fix.

Key Takeaways

A pending hold is usually an authorisation hold rather than a freeze. Visa's documentation describes a pre-authorisation as reserving funds when the final amount is unknown, with the merchant having up to 30 calendar days to capture it (Visa Acceptance, Pre-Authorization).
Lodging, car rental and fuel are the transaction types most likely to hold more than the final bill (Visa Acceptance, Pre-Authorization).
Spending limits cause declines that look like errors, though they tend to sit high. On Brighty, virtual Mastercard purchases cap at €50,000 daily and monthly on One, €75,000 on Plus and €100,000 on Pro (Brighty, Fees and Limits, 2026).
An unexpected conversion charge usually means the free monthly allowance ran out. Brighty's allowances are €0 on One, €2,000 on Plus and €5,000 on Pro, after which conversion costs 0.6%, 0.5% and 0.4% (Brighty, Fees and Limits, 2026).
An unexpected percentage on a foreign purchase usually traces to currency conversion. Brighty's published card schedule does not list a foreign transaction fee, so the charge to check is conversion above the free monthly allowance (Brighty, Fees and Limits, 2026).
A notably poor exchange rate at a terminal usually means dynamic currency conversion was accepted, which applies the operator's rate rather than your issuer's (Visa, Decoding Dynamic Currency Conversion, 2026).

The problem-to-solution map

Match the symptom to the row, then work through the fix. Most cases resolve without contacting support.

Symptom	Likely cause	What to do
Declined, though the balance looks sufficient	An authorisation hold has reserved part of the balance	Check pending transactions; keep a buffer above the purchase price
Declined on a large purchase	Daily or monthly spending limit reached	Check your tier's limit, split the purchase, or upgrade the plan
Declined only when abroad	The purchase currency is unsupported, or the card is restricted in that region	Check regional and currency support before travelling
Declined at a fuel pump or hotel	Pre-authorisation exceeds the available balance	Pay inside rather than at the pump; keep extra balance when checking in
Funds unavailable for several days	Authorisation awaiting settlement	Wait for capture or expiry, or ask the merchant to release it
Account access restricted entirely	Compliance or source-of-funds review	Respond to the verification request with the documents asked for
Conversion cost more than expected	Free monthly conversion allowance exhausted	Check remaining allowance before converting
An extra percentage on a purchase abroad	A foreign transaction fee on that card, or conversion above the free allowance	Check the card's published fees, and pre-convert to the local currency
Exchange rate far worse than the market	Dynamic currency conversion accepted at the terminal	Always choose the local currency of the country you are in

Two rows cover most of what people report. Authorisation holds explain declines that make no sense against the visible balance, and the conversion allowance explains charges that appear without warning.

Why was my crypto card declined?

A decline with an apparently sufficient balance almost always means something has reserved part of that balance, or a limit has been reached. The card itself is rarely the problem.

Authorisation holds are the most common cause. A merchant reserves an estimated amount before the final figure is known, and that reservation sits against the balance until settlement. Hotels, car rental desks and fuel pumps do this routinely (Visa Acceptance, Pre-Authorization). A fuel pump reserving €100 against a €40 fill leaves €60 unusable until the hold clears.

Spending limits produce declines that feel arbitrary because nothing on screen explains them. Brighty's virtual Mastercard caps purchases at €50,000 daily and monthly on One, rising to €75,000 on Plus and €100,000 on Pro (Brighty, Fees and Limits, 2026). Limits that high mean a decline is far more likely to be a hold than a cap.

Insufficient balance after conversion catches people spending from a crypto balance. The conversion happens at authorisation, so the amount deducted reflects the rate in that instant. A balance sitting just above the purchase price can fall short once the conversion applies.

The wrong balance linked matters in a multi-currency app. Spending from an account that is empty declines outright even when the total across all accounts looks sufficient, and spending from a balance in another currency triggers a conversion you may not have intended.

Why are my funds on hold or frozen?

These are two different situations, and telling them apart saves a lot of unnecessary worry. A hold is routine and temporary, while a freeze is an account-level action requiring a response.

An authorisation hold reserves funds for a transaction that has not settled. Visa's documentation describes the pre-authorisation flow as placing funds on hold until the merchant requests a follow-up transaction, with capture permitted within 30 calendar days (Visa Acceptance, Pre-Authorization). Most settle within days. If the merchant cancels without releasing, the hold expires on its own.

The fix for a hold is usually patience, or a call to the merchant rather than the card provider, since the merchant controls the amount and can release it early while the provider generally cannot under network rules.

An account freeze is different. It typically follows a compliance or source-of-funds review, and the signal is restricted account access rather than a single failed transaction. Responding promptly and completely is what shortens these, since partial answers extend the review while the documents requested are usually straightforward.

Why are my FX fees higher than expected?

Three separate charges can apply to a foreign purchase, and they stack. Working out which one hit explains the difference between the expected and actual cost.

The free conversion allowance running out is the most common surprise. Brighty allows €0 of free conversion monthly on One, €2,000 on Plus and €5,000 on Pro, after which conversion costs 0.6%, 0.5% and 0.4% by tier (Brighty, Fees and Limits, 2026). The One plan charges from the first euro, which surprises anyone assuming an allowance exists.
A foreign transaction fee applies per purchase on many cards when the purchase currency differs from the balance. Brighty's published card schedule does not list one (Brighty, Fees and Limits, 2026), so an unexplained percentage on a Brighty purchase points to conversion instead. On cards that do charge it, the rate sits in the issuer's fee schedule rather than on the marketing page.
Dynamic currency conversion is the largest of the three and the easiest to avoid. Accepting a terminal's offer to bill in your home currency applies the operator's exchange rate rather than your card issuer's (Visa, Decoding Dynamic Currency Conversion, 2026). Declining it costs nothing and saves the markup every time.

How do you prevent these problems?

Six habits remove most of these situations before they occur. None requires changing providers.

Keep a buffer above the purchase price. Holds reserve more than the bill at hotels and fuel pumps, so a balance matching the expected cost exactly will decline.
Pre-convert before travelling. Converting once into the destination currency avoids converting at every purchase and gives a known rate rather than whatever applies at each tap.
Check which card is linked. Where a provider issues several, the difference between them can exceed the difference between providers.
Always decline dynamic currency conversion. Choosing the local currency of the country you are standing in is the single largest saving available abroad.
Know your limits before a large purchase. Checking the daily and monthly cap beforehand avoids a decline at the till.
Answer verification requests fully and quickly. A complete first response is what keeps a compliance review short.

The habit that prevents most declines is the first one. A balance held exactly level with expected spending leaves no room for the reservations the payment system makes routinely.

How Brighty handles these situations

Brighty issues a virtual Mastercard on every plan, and cards can be frozen and unfrozen from the app when something looks wrong.

The figures that matter when diagnosing a problem (Brighty, Fees and Limits, 2026):

Card purchase limits: €50,000 daily and monthly on One, €75,000 on Plus, €100,000 on Pro
Free conversion allowance: €0 on One, €2,000 on Plus, €5,000 on Pro
Conversion above the allowance: 0.6%, 0.5% and 0.4% by tier
Card costs: free monthly service fee on every plan, €2.99 to issue, free balance inquiry

One of those explains most Brighty-specific surprises. The One plan's €0 free conversion allowance means charges start from the first euro rather than after a free tier, which catches anyone assuming an allowance exists. The purchase limits sit high enough that a decline on a Brighty card is far more likely to be an authorisation hold than a cap being reached.

FAQ

My card was declined but I have enough money. Why?

Almost always an authorisation hold or a spending limit. A hold reserves part of the balance for a transaction that has not settled, and the reserved amount is often larger than the final bill at hotels and fuel pumps (Visa Acceptance, Pre-Authorization).

How long do authorisation holds last?

Most settle within a few days. Visa's documentation allows a merchant up to 30 calendar days to capture a pre-authorisation, after which it expires and the funds return (Visa Acceptance, Pre-Authorization).

Can my provider release a hold early?

Generally no. The merchant sets the amount and can release it, while the card provider is bound by network rules. Contacting the merchant is the faster route.

Why did my account get frozen?

Usually a compliance or source-of-funds review, which is an account-level action rather than a failed transaction. Responding fully to the first request is what shortens it.

Why was I charged more than the price shown abroad?

Start with the terminal's home-currency offer, since accepting it is the most expensive of the possibilities. If that was not it, check whether your free monthly conversion allowance had run out.

How do I avoid extra charges on foreign purchases?

Hold a balance in the currency you are spending, so nothing converts at the till. Where that is not possible, convert once in-app before travelling rather than at each purchase, and decline the terminal's home-currency offer every time.

Download Brighty to spend from euros or stablecoins on a virtual Mastercard with no monthly service fee, and freeze any card straight from the app.