MTN Boulders Horrible Service

I am writing to express my disappointment with your poor service. I am very frustrated and disappointed with the terrible service I have received at MTN Boulders Midrand. On the 27th September I went to pay my account and I got assisted by Minenhle Gwebu. My first experience with her was very distasteful, she very rude and she's needs some serious soft skills. She made and error and allocate my payment to a wrong billing account. I've got 3 account and 2 I pay them with cash and one it's a debit order and debits on the 15th. She made payments on the account that gets debited on the 15th. 1st of October I received an sms saying my account BA*** is getting suspended due to non-payment. I went to MTN at Mall of Africa to try to rectify this and I was advised that I need to go back to Boulders for them to log a query for funds re-allocation since error was done at that branch. I went back to Boulders and I have never felt so disrespected by the whole shop. I had to wait for Minenhle Gwebu for almost an hour even when she had to client for her to log a fault for me. Ref: SR: *** which today I was told it was rejected with no explanation. Today again I experienced the horrible experience and I hate that my time was wasted because I was the first to get there when they opened at 09:00. I wanted for them to assist me for 30mins while they chatting about their plans for tonight and them watching the MTN Top 8 Finals. Then after I had to sit for another 25mins while she was logging a new call for me. Ref: REQ ***. Today I experienced a very unprofessional and very disrespectful environment. All four staff that opened the store today don't have any client skills. While Minenhle Gwebu was giving me an attitude they were laughing. I can't wait for my contracts to end in December and in Jan. I'm due for upgrade and after that experience I am done with MTN. I've been their client for almost 15yrs and I've had it with MTN. I'm requesting a callback from someone very Senior who can sort out this mess because I can't keep going to the branch and spending my petrol money and for me to receive this horrible service.