MTN please sort out this problem!

MTN I reported this problem to the customer care services no respond yet. I made a payment on the 4th of April an amount of R500 that is with the outstanding amount. I use my phone to work and my phone is switch off I cant do anything without wifi. Please switch on the phone I did send proof of payment that the money was payed into the wrong account nr. A account number that doesnt exist but the money is in MTN's absa bank account. Absa bank said MTN must allocate the money.