Confused and hurt

On the 30th of August 2022 I went to totalsports jubilee mall in hammanskraal to pay my account upon going out I realised on the receipt that there was someone else's name there but the amount was what I had paid, I quickly went back and showed it to them, I waited almost 2 hours to be assisted because the manager was on a conference call, when he was done he sent an email to rectify this mistake and he said it would be sorted out by the end of the day, to my surprise I got a message today to say that my account is overdue, I called their customer care and they said I must go back to the store because they did not receive any query then I called the store and spoke to the manage and he said he will escalate the matter and he will send me proof of the emails that he sent and I am still waiting, if there is anyone from TFG who can assist me please do, I. Don't know what to do anymore