INCORRECT BILLING

I'm a first time Mtn customer and I'm receiving terrible service. I purchased a Samsung s24 on a trade in contract. The contract amount was R600 but I am being charged full price of R1000. I visited the Mtn store in Cornubia Durban and they couldn't assist and said it's a general issue .

It's been 3 months now and I'm being charged R1000.

THE MTN CALL CENTER CANT ASSIST THE MTN STORES CANT ASSIST.

IF NO ONE CAN ASSIST. KINDLY CANCEL MY CONTRACT AND RETURN MY OLD DEVICE.