DISHONEST BILLING

Three months ago I received an astronomical bill on my daughter's contract. I confiscated her sim card and bought her a prepaid sim in order to continue her online learning. After about a month, I received another exorbitant bill which I knew couldn't be correct as I was in possession of the sim card. I logged a call on the 4th of September and according to the consultant, Primrose, she could see someone had accessed the internet on the day that I called, which definitely could not be correct as I has the sim card in my wallet. she promised to open a case and I would receive a call within 3-7 days. After two weeks I received an sms to say my call had been resolved but no one ever called me. I contacted Telkom and I was on the phone with another consultant for almost 30 minutes who said he will get his team leader to attend to me and then he just dropped the call. I received my bill for September today and another exorbitant bill when my daughter has not had her sim card in almost 3 months. Telkom is clearly involved in ********* billing!! I need to know when this matter will be resolved as I know that we could not have additional costs over and above the normal contract fees as the sim card and phone is non-operational