Unsatisfied customer

Hello Peter My wife bought from Telkom 2x Hisense U962 cellphones via Mondo their marketing service provider in April 2019. We had many issues firstly with Telkom not making the debits on time till my wife ran out of funds. Secondly and currently my wife initially took a deal for Internet bundles and 200 minutes from Telkom to Telkom, so we could contact each other and our parents. The minutes worked for one month only and up until now we are not using the minutes that we are paying for because Telkom says its network problem in our area. They tried assisting but their solutions last only for one day and we still can not contact each other using the Telkom minutes. At first, the solution of inserting the Sim card to another phone used to work but not now. Thirdly, it is very difficult to get hold of an assistant when calling Telkom call center. Please help as we are paying for a service we are not using.