data loaded by 'mistake' and no one wants to fix it

I recently called to see how much it would be to load data to my account as a recurring bundle, they price is R260 for 2GB i said that is way too much seeming as i can get 1gb weekly bundle for R50 on the app. a few moments after hanging up i received a message to say 2gb has been loaded to my account on 22 December, i immediately called the call canter on 808 to take this off as it was also showing as an unbilled amount. at least into my 10th call now after hours on being put on hold waiting for managers and then the calls drop. then my lines were suspended just before christmas as my credit limit had been reached. i am shocked at the level of service received and lack of helpfulness, i have had to make all the calls and no one has kept in comms with me. as a private client with 4 lines with MTN i really do expect better service than this. please credit the amount that was incorrectly loaded to my account and remove this data from my balances. i do not want it. please also compensate for all the inconvenience and lack of service received. calling 808 is free but time is money man!