Telkom do not know what they are doing

Telkom tried to debit me, and there was short 2 rand which I understand, so I called and asked how to pay the amount and I was provided with details and told I dont need to pay for may as well.only the outstanding amount, I tried to create the beneficiary on Absa online and the banking app said my account number is not valid, I called again this morning after they tried to debit for may and April from my account creating more bank charges and penalties at telkom for nothing, the lady exained I would be devoted 2500 twice once this month and then may 1st as well which is not correct at all, I then asked her to assist me with the correct details so.i can make the payment she put me on hold then cut the call now I am without internet, paying more than I should becuase telkom does not know what is going on, I will be taking this as far as I can as I dis my best to pay the amount required, I was never called or notified only on the router which no one checks, they have my contact details but no one called me to say the debit bounced and now I have no internet and no way of paying as the details they gave me were wrong, I waited 2hours on the phone only to be cut off. I work from home and am.now.seriously inconvieniced even though I have made more than one attempt to pay and resolve and the call centre is filled with people that cant assist and talk *******.