Cancelation of Contract.

Good day hope this finds you well.

My Mom took out a tablet on Contract for me in 2011 which was suppose to be for 24 Months However till today she's still liable to pay for it.

She has trued by all means going to the Store or calling to try and cancel the Contract but to No avail or She receives back Service nje with no way forward,She even changed from debit Order to Cash Payment and she would still be called for payment.

We tried doing a Sim Card Swap as we lost the Sum years back and Still no assistance however at times we are being told the Money deducted is for data that we do not have access to.

Kindly assist with the above matter and how it can be resolved its been over 10 years trying to sort it out and we still unsuccessful.