Horrible service through and through !

I started with a process to cancel my MTN contract, I went to the store was adviced on an ammount that it would cost me and that I need to call the 135 number to pay it. After getting home I phoned the number and was given the exact same ammount, but that this time I now need to go to the store again after being told they cannot help me. Fine I went to the store was given the same ammount a third time and payed it to have it as a credit on my account.

Now calling again to process the cancelation all of a sudden the ammount is signaficantly more as 3 of the consoltants did not include VAT and advised me incorrectly that by processing the cancelation I will not pay the next debit order. A little annoyed I calculated and found it is not worth going through with the cancelation and asked the consultant to process a refund.

This is where this got really bad, firstly the consultant did not add a department leaving my ticket in the void for a week even after I had been calling every second day to follow up and nobody picked this up until a week later. A new ticket was logged starting this from scratch calling again every second day to follow up, every time no progress untill 4 days ago where I was told that it's in process. Back to today still no feedback from a single person this whole time! I decided to call again now they need a bank statement to continue ? I was adviced you have my banking details and that is where the money will be refunded to, I asked multiple consultants over the course of my discussions if they have the details and I was reasurred that they do. Now that I have sent my bank statement still no response of recieved btw... how long will I have to wait to hear their next excuse ? This is absolutely inexcusable and unacceptable!