Worst attitude ever, embrassed front of all!!!

was billed R1000 instead of R799 for two months on a MTN upgrade. query logged at Featherbrooke branch with Albertino Neto on the 17 June, feedback received on the 25 June with one word saying 'rectifying'. this did not answer what happed or when will I get my money back. I went back to the branch twice and was told they cant even tell me my monthly installment and that they are a Franchise I need to call 808 or go to a service branch to follow up like Northgate. I tried calling 808 and held of for 30 mins without an answer. I went into northgate today and was told that initially the query was logged incorrectly and they mailed Albertino. I decided to go into work and visited MTN Featherbrooke while there to check if albertino received the email. when I got there the lady that was helping asked Albertino whom was sitiing next to her the status of query and advised what the store said. he loudly said 'I disregard what the service store says and I want something in writting' HOW CAN HE SAY THAT AND ASK ME AS A CUSTOMER FOR SOMETHING IN WRITING SAYING THAT' I was never more embarrassed. he was talking loud and saying why did I not ask northgate to help and why I came back. everyone.