Dunning letter about AfD donations: When banks intervene in payments. Whether online or by traditional transfer, banks can prohibit or at least withhold payments in certain cases.
Payments to recipients who are on sanctions lists are automatically filtered out and stopped by the banks. Other things only apply to parties and associations that have been legally determined to be unconstitutional. Even exceptionally large sums could result in the bank initially withholding payment. It is not always real bank employees who contact customers. A 79-year-old woman from Lünen lost 18,000 euros in a scam because she fell for the wrong bank employee.