Telkom Fleecing Pensioner

I have a contract with Telkom which was renewed in terms of which I subscribed for a FreeMe 3GB TopUp Samsung Galaxy A12 with Free Samsung Fit watch. Monthly subscription is R 339. Telkom has however been billing me R 457,57. What makes this more intriguing is that not only is it R 118,57 more per month than I contracted for, a monthly fee of R 8,57 in respect of CLI presentation a service which Telkom admitted to me they have for many years not charged. There is another R 70 per month charged for Add On Internet Bundle that I also do not receive nor subscribed for. I have on two occasions contacted Telkom regarding this overbilling of R 118,57 per month. The first occasion was a telephone call to their call centre and I was ensured that the matter would be resolved and corrected. The second occasion I made a visit to their store in the Mall@Reds. Once again Telkom is not playing ball by refusing to resolve this matter I feel I am being fleeced. Telkom must take drastic action to resolve immediately.