Yeah, this whole thing seems almost impossible with SEPA bank transfers since the order is the other way round. The sender tells their bank to send someone mon

Yeah, this whole thing seems almost impossible with SEPA bank transfers since the order is the other way round. The sender tells their bank to send someone money, the bank checks the sender's funds and notifies the receiver's bank of the transfer, then the receiving bank notifies the receiver they got the money. This whole thing used to take 2-3 days in the days of paper giros, but it's pretty much instantaneous now.