Bad Service

I just had a contract with MTN and and off November they didnt debit they suspend my line and i called them on 135 and asked for banking details to make a payment and i did an EFT from Capitec to MTN FNB account no on the 16 Dec. when i call them i'm told they cant see my payment and one of the consultant told me to send proof of payment i did and still nothing from them. There service is bad really up to today they cant see my payment which is strange cause i used their banking details. If they cant help they must take their phones and sim cards,i will go to another provider. bad service