Vodacoms poor service

I have had a vodacom account for years that was originally opened by my mother, now I am trying to get the account onto my name but I am getting nowhere with vodacom, I have done all the necessary paperwork and submitted it, then this morning I get told that the application to transfer the account is declined because of my credit rating, I contacted the credit company preferred by vodacom, only to be told my profile is clear but that vodacom listed me as a late payer. On trying to talk to vodacom to sort out this matter I get told they cant discuss it with me and my mother has too call them. I have been paying for this contract about 20 years now, and this is the level of service I get. Very poor service Vodacom