I have been with on Telkom Call Centre former than an hour, I took a device two months ago and I signed for for a contract to pay R749, now on a monthly basis I get a bill for R2000 why ch I can not afford. I called Telkom to change this to prepaid so I

I have been with on Telkom Call Centre former than an hour, I took a device two months ago and I signed for for a contract to pay R749, now on a monthly basis I get a bill for R2000 why ch I can not afford. I called Telkom to change this to prepaid so I can just pay for the device only, the lady that I spoke to Kamogelang Kutumela says its not possible as they have changed the contract to prepaid and I need to pay R20 0000 for he penalty fee- show can I be bale to pay that amount of cannot afford R2000. she refused to transfe meekest to he superior or manager. She mentioned that the Manager's name is Chamaine Ma***u. Telkom service are just not good. I haven't received any assistance at all