Telkom Mobile Terrible Experience

Telkom has handed me over to Nudebt

I have already opened two cases which they have not attended to

i did say that i was billed incorrectly and that the upgrade done was not received which was also confirmed on call since all calls are recorded why are they billing me for a phone they have confirmed that i did not receive due to no stock? i have opened two cases with them

*** -case opened to cancel contract

***9 case opened for incorrect billing the last person/ consultant i spoke to asked me to send her the billing invoice which i have done but has provided no feedback regardless of numerous follow ups

i am in a process of buying a house and unfortunately this will impact my credit score i am not sure why would Telkom not care of their loyal customers ever since i had my contract with them i had never missed a single payment

I need someone from Telkom to intervene on this PLEASE