Behind the question "How to answer source of funds?" there is usually a payment that stopped somewhere. It rarely says why: the screen shows a generic error, the money stays where it was or sits in a pending state, and the player is left guessing whether the problem lies with the bank, the payment provider or the casino. Most blocks fall into a handful of known causes, and each one leaves a different trace in the account history.
Withdrawals are sometimes cancelled on the casino's side. A request may return to the balance if the payout method has been closed, the bank details contain an error or a bonus condition was still open when it was made. The account history marks these returns, often with a short code. Support can translate the code into the reason in plain words, and a corrected request usually goes through on the next attempt.
A casino can place a hold on the account itself. Missing documents, a name that does not match the payment method, or a change of address during play can all pause withdrawals until the details line up. Larger wins or unusual deposit patterns can lead to a source of funds review, which asks for payslips or bank statements. The message about a hold normally names the missing item, and sending exactly that item brings the review to a close sooner.
Limits reached on the account block payments without any fault on either side. A deposit limit set by the player stops new deposits until the period resets, and a cooling off or self exclusion period stops them entirely. Some casinos also cap deposits for new accounts until verification is complete. The limits page shows every active limit and the date it lifts, which answers the question before any support ticket has to be opened.
Yes; missing documents or a source of funds review can hold payouts, and sending exactly the item named in the message ends the review sooner.
Issuers can block gambling payments entirely, above a daily amount, or flag a first payment to an unfamiliar merchant as possible fraud.
A name that does not match the casino account can pause withdrawals until the details line up, and the same applies after an address change.
Casinos often post a notice on the payment page or in live chat, and the provider's own status page confirms an outage.
A request made while bonus conditions are still open may be returned to the balance, along with requests to closed methods or wrong bank details.
The bank's app usually records the refusal even when the casino shows only a generic error, and calling with the time and amount clears most cases.