12 MONTHS AT R589, THEN JUMPED TO R1009/MONTH!!

Me and my wife both renewed contracts at MTN Clearwater mall mid last year (2016). We were offered two very similar contracts with 550min/month, 1000 sms, 1gig+3gig data for 12 months. AFTER the 12 months, the contract will change to 350 minutes, 1000 sms, 1 gig of data at the same monthly rate of R589. To my surprize my debit order was charged for R1009 at month 13. When I called MTN call centre they said I requested additional minutes (200) and data (3 gig) and that is the additional money deducted. I challenged them to show me where I requested or signed the document for that? I was asked to visit the Store and get things sorted out there. We visited the Store in Clearwater mall and was assured it was a mistake between the store and MTN, BUT IT WILL BE RECTIFIED. I was assure the over charged monies will be paid back to us by MTN. on a second occasion we went back to MTN store to confirm that all was sorted out now. Again we were assured that MTN SA will fix the issue and I was shown the next debit order will be for R589. When I checked my debit order for August it was once again for R1009!!! I CALLED THE CONTACT CENTRE, AND I WAS ONCE AGAIN ASSURED THE PROBLEM WILL BE FIXED AND I WAS ASKED IF THE EXTRA MINUTES AND DATA SHOULD BE REMOVED. I am not convinced this will be rectified. IF YOU ARE INTENDING TO GET A CELL PHONE CONTRACT, I SERIOUSLY SUGGEST USING A SERVICE PROVIDER WHO WILL NOT ***** YOU OUT OF YOUR MONEY!!