Account is frozen - After 15 working days they ask for a Pay Slip..

My account was frozen for no reason. I did a few transactions to Luno. Was then informed the I am doing money mauling. I was then informed that I must wait 15 working days for it to be resolved. All my debit orders bounced during this time. I was expecting money in from my pension fund, and it also was rejected. After 15 working days going to the branch, I was informed that it can take up to 30 working days. I need now to supply a pay slip, to see if it is my salary being paid in....... My question... Why not ask me for a pay slip during the investigation. Every month my salary is being paid in. Can't they assume that the money that are deposited the 25th every month is my pay. It is the same amount. The bank whattsapp group is useless .... All they say there is an ongoing investigation, and I must wait for somebody to come back to me .... Nobody does. This is the worst experience ever. My money is stuck, and I need to live.