Cell C loses another customer

I originally had 4 contracts with cell C and when it was time for an upgrade, their pricing was far more than MTN for the identical phone and package which I was looking at. At the time Cell C said to me that their pricing is fixed and if I don't like it I must go to MTN. Which is exactly what I have done with all four of my contracts. When I cancelled my last contract I received a call from Cell C appalled at the fact that they did not match the offer and they assured me it would not happen again should i consider coming back to Cell C. It is now time for my wife to upgrade her contract with Cell C. She is looking at the IPhone 6s plus which MTN is offering at R729 per month [URL Removed] for a similar contract with the same phone Cell C wants over R1000 per month. The consultant I have been dealing with has been very nice and helpful unfortunately she has taken it to management and their attitude is still that the customer must go to MTN if he doesn't like our deals. I cannot believe that Cell C is happy to lose its 5th contract to MTN.