Absa ***** case

My name is jerard tyson pillay I've opened an absa A customer purchase a item and after paying he reported my account. He didn't supply me with proof of payment I was told to get a affidavit which I did and I sent it to ***** and now they telling me it's not enough then I sent the invoice and she's not helping me her name is Lerato Hope Matlou she haven't given me in a call only once I got emailed