Ackermans account

I had an account at ackerman's on the 07-04-2022 I paid the account in full and wanted to close the account so we had to call the head office and they were busy and I couldn't get through to them so I told the lady who was helping me that I will come back tomorrow and on the 8-04-2022 I go back to the shop to close the account so we call the head office again to close the account and the lady who answered the call told me that I had paid R505 over so I need to buy something to close the account so I get somethings paid with the card and called again and they said the account will be closed on the 11-05-2022 I get a sms saying that I am owing on the account and on the 12-05-2022 I go to the shop and they called the had office and I was told that on the 30-04-2022 the money I paid was send back to me at pay app the next one say to us that the money was send to my bank account and I didn't get any money that was reversed am willing to even give my bank statement to show there was no money that was reversed to my account don't know anything about the money and they are saying that I have to pay the money I owe but I don't own any money.my slip for the 08-04-2022 say I own 000 I have all the payments slips to show that I don't own the account an in-store everybody is confused about what's going on now because when you call the head office everybody there will tell you a different story and the head office said I'm forced to pay but I can't pay for something I dont know a thing about . Please help me