Dissapointed

I have a data contract with Telkom. In April I realised that my bill was higher than usual and I called them to cap my account on the voice line as I'm only using the simcard for wifi at home. A month later I'm starting to run out of data which has never been the case as I usually carry over data from previous month, their salesperson calls me for an upgrade and mentions a number that I do not know which has been added to my account 🤦🏽♀️ I asked that the number be removed from the account and they're still billing me for it.