Payments not reflecting and additional contracts

Hi I am hoping somebody can help me.....I am writing on behalf of my mother who has since last year yet to resolve issues affecting her as a MTN contract customer. I must add that my mom has been a loyal MTN customer for many years now and when I supply her contact details to MTN can confirm this on there system. First of all last year when the two year period was nearing completion on her exisiting contract instead of upgrading existing contract alone my mom upgraded but only to find out a month or two later that she had unpaid accounts for other existing numbers and contracts that were on her profile that she was totally unware of. Nobody could assist her and she was merely advised to make payments for these other numbers and has done so accordingly but in the interim a new problem arose in that the payments DON\T reflect yet I do the payments on her behalf and I have all the proof of payments!!! This is unacceptable. She has phoned multiple times and has gone into various branches from King to East London. Please can MTN contact me so that I can give you her details. Regards David."