Poor customer service

I received a call around September 2021 that I have an account which Vodacom which I disputed because it was a *****ulent account opened under my name. I was told that I have to do an affidavit and ID copy and sign 3 times which I did and sent on the 3rd of October 2022 to date the issue hasn't been resolved I haven't received acknowledgement of the docs I sent to my surprise the account was handed to MBD which also they are very back I have sent all the documents they request but still... Am so posse off with their service someone has to do his or her job because this is going to affect my credit