Poor Service at the Brooklyn MTN Branch.

During November 2020 I renewed my MTN contract at the Brooklyn Branch. I actually downgraded to a cheaper contract of MTN Mega Talk XL at a monthly cost of R 599 per month. However, within a week of the renewal my personal scenario changed drastically requiring more minutes and for that reason I approached MTN Brooklyn to once again change to my previous contract of R 999 per month. When I received my first deduction it was for an amount of R 1,702.54!! I immediately visited the Brooklyn Branch explaining my problem. The gentleman promised to phone me back, but to no avail. After another 3 days I revisit the branch and the gentleman explained to me that he is still working on my query??!!! He however promised me that he will lodge a request to the head office to obtain an answer. Once again another day passed without any phone call!! How much time and effort will it take to provide feedback on a regular basis? At this stage I am sitting in a vacuum and will have to once again take time to visit the branch to obtain an answer!! No wonder that you find queues at the Vodacom branch in Brooklyn and only a few people at the MTN store!!