7 Months Incorrect Billing!!!

Wow, what bad luck I had since I upgraded my internet contract in January 2015 on Account No: A***. Its a SIMPLE R249-00 monthly 5GB internet capped contract that was billed incorrectly every month since then (overcharge)- UNTIL 15 AUGUST 2015 WHEN MY BANK ACCOUNT WAS DEDUCTED WITH R4 263.32!!!!!! What the HELL????? NONE of my other debits could go through because of this STUPID ERROR! And where is my monthly billing account?<br> <br> I dont want to open my banking page to see the bank charges for the other failed debits due to MTN's incorrect billing! <br> <br> MTN, you better refund the R4 014.32 by today, 17 August 2015. And you better load airtime on my cellphone ***so that I can call my insurance companies and ADT, etc to explain why their debits did not go off! The knock on effects are disastrous. And for once get the DAMN BILLING ON THIS ACCOUNT CORRECT for the remainder of the contract life!<br> <br> DONT DARE TO TALK ABOUT IN 3 DAYS TIME IM GOING TO GET A REFUND! Im going to strip! I WANT MY REFUND TODAY!!!!