Telkom unauthorised debit deduction

I took out WIFI a few months ago with Telkom, cancelling my previous one to move to Telkom thinking I would get better service because it is just a well known brand in South africa and has been in operations for years. to my utter regret I am experiencing such problems with Telkom, for the short months Ive been with them they have suspended my account once, left me without wifi and internet (and I work from home) due to non payment however when I query or check my account through the whatsapp service I am fully paid up. no one can explain why, I had to go to a branch to have it sorted. today I get a message saying my account will be suspended due to non payment again, now this time its different, Telkom is attempting to debit a R74 from my bank account, which is unauthorised transactions on my account, again when I go to see if I have an outstanding balance I am told no that my next debit is end of November, now I am being threatened because Telkom wants to conduct ******* activities on my account. added to this the wifi signal is poor not reaching to my room in my own house, not outside, not even at the back in my room. I am so disappointed in this service. also when you try to call and choose the billing and account prompt you get sent to whatsapp so I cant speak to an agent because choosing another prompt tells you they wont be able to assist with anything other than what the prompt is for, so how do I resolve this? why is telkom trying to take a R74 from my account, the first amount was a R34 or R32 , what is this for and I did not authorise this. this needs to be resolved immediately, I can be reached on ***.