Telkom not service providers - providers of no service!!!!!!!!!!!!!!!!!!!!

So i signed a 2 year contract for wi fi with Telkom last year and it was for 40 gig for 2 years. So in January the debit did not go off as there was insufficient funds in my account and they double debited in Feb which i did not fight, because i owed them the money. A month after my data kept running out which was strange and i went on the app and it said i only have a 20 gig now and since then they have been double debiting my account and still says i owe them money which i don't. Now i pay double for the least amount of wi fi and now i have no wi fi. I phoned them on Saturday fuming and demanding they put my wi fi back as the debit went off of R 507 instead of R 303 what the debit should be and they said arrogantly to me that i still need to pay over R 400 before the will assist to which i started swearing at them and wanted to speak to a manager who would have phoned me back. Still waiting on that one. I will from now on reverse the debit every month until my wi fi has been turned on as they do not deliver on their service which they are not service providers they are providers of NO Service!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I want a manager to phone me as i will not let any debit from Telkom go off of my account again...……………………….