Failer to refund

On 04/01/26 i made a wrong deposit into my fnb loan acc which is up to date. the deposit was R8600.00 and i thought i deposited to my wesbank acc. I called and spoke to a lady by the name of Andiswa. She tried to help then on the second day she called and told me that her superviser need pop for them to refund. The money is in my acc and the ref is my name. i dont have the pop since it was an atm deposit so what proof do they need. the money is in my acc and all i want was them to refund or credit it to wesbank. The level of service or of reasoning from the so called supervisor is very poor. They don't give a F*** it's my credit rating on the line without help. Do better this is my acc for that matter