Vodacom does not update systems when customers request.

Once again, having problems with Vodacom. 4 Years ago, got married, emailed my marriage certificate and I.D. to them nothing was updated or fixed. However MTN, and all my other accounts were able to do it. Now I upgrade a contract of mine, and RAM cant deliver because the surname has changed, Send everything again to Vodacom on the 15/10/2020, since then I have been trying to get them to sort out the updating of their system however to date, still nothing and still have not received my upgrade. Been Phoning, Been Emailing, but no one assist or updates their system so that my upgrade can go through. When I phone, I get put through from one department to the next. This is unacceptable, as they should be able to sort things out like this timeously and not make customers wait, as no one on their side did their job and updated the system 4 years ago, when they originally received my documents.