********** contract, *********** staff, no customer service at all!

I took out an MTN data contract, from 22/6 at Hemingsways in East London but by 28/6/20 a pop said that I need to buy more data. I queried, the consultant Elisa then gave me the wrong info to which I told her that was a breach and I wanted out, she told me that she's on leave but never got back to me. I went to the branch, Fezeka was reluctant to help she said that I've used 50 GB which is ridiculous & promised to call once my data is loaded on the 6/7, she **** even after I called & left a message, she could not be bothered. Jay Nel has logged a query on the 10/7, still nothing and today I emailed requesting a call from her manager and still nothing. I just had enough of *********** staff who don't know their product, they can even tell from what time is the night data & their lack of service & attitude is just unbelievable! Yet they're supposed to be the top cellular network provider in SA! There's a problem with their product but they're not bothered and if you personally go there, you still have to wait for 1.5 hrs in the queue, am I asking for too much here. Let's call it quit as I don't have the time, energy and patience with this contract,