MR PRICE SPORT VAAL MALL - DISHONESTY

I am Furious, today 10/08/2021, I've received a sms stating that I must pay R1600, My last installment amount was R765.. As this doesn't make any sense to me, I phoned customer service only to be told that my latest installment for July wasn't paid. On 1st of August I went in to VAAL MALL branch and paid my installment cash when I was told that they can not print my receipt, there is something wrong with the printer. I didn't made much out of it and trusted a corporate company to submit my payment.. My biggest mistake!! Now I'm listed as a bad payer even though I HAVE paid my account.. Pathetic, i want to know where my money went soon and I want my name recovered from slow payer status. Warning to all costumers, AVOID PAYING YOUR CARD WITH CASH, if you do DON'T leave the store without any receipt.