No deductions for a contract phone

I’m writing this on behalf of my mother. She’s currently having a bad experience with Telkom for months. She bought an iPhone on contract with this number +***3 and they currently closed the phone due to no payment made. This comes as a surprise to my mom because she has money in her account but there was no deduction made from Telkom. Other months they skip a month without deducting and deduct double the following month. This is not my mother’s fault because she always has money in her account but Telkom decides not to deduct.

Every time she goes to Telkom store they do back and forth when they should be assisting her. She is currently not enjoying this contract due to this inconvenience.

Please kindly call her on *** to resolve this matter. All we want is for Telkom to deduct the amount for the phone on a monthly bases as per the agreement.