VODACOM SHOCKING ADMIN SERVICE

On the whole I am happy with the package and general service I receive from Vodacom. I have one problem that is hugely annoying and for some reason cannot be resolved, It has been ongoing for 4 YEARS. I have been struggling to change my surname, form my ****en name to my married name, I have called the call centre on numerous occasions trying to get this issue resloved. I have gone to Vodacom Cresta many times as well with a copy of my marriage certificate. Each time I am given the assurance that this will be resolve, however at the end of the month I still receive a statement in my ****en name. I went for an upgrade on the 24th of June 2018 to Vodacom CRESTA. It was still note done. When the consultant typed in my number on the system, the contract was STILL in my ****EN NAME. I have been a customer of Vodacom for a long time and got married in NOVEMBER 2014. It is a joke! What is the point of RICA!!!! I went back the next Monday to give them a copy of my marriage certificate. The person that helped me was not there (but I was given the assurance that this will be done). I tried to call Vodacom Cresta on the 2nd of July 2018 . After several failed attempts (because nobody could be bothered to pick the phone up) I called the VODACOM helpline. After about 20 minutes on the phone and explaining my story yet again, I emailed a copy of my ID and marriage certificate to the helpline, once more! I received a reference number: 1- ********** ********** . This was on the 2nd of July 2018 at 06:53. At 14:10 on the same day, I received a sms to indicate that: "Your query with ref number 1- ********** ********** has been closed. I called to check if the name change was done. It wasn't! I logged another call and send my marriage certificate again. This time query number, 1- ********** ********** . This was at 14:08 on the 2nd of July 2018. At 14:11 on the same day I received a message that the query has been closed! Came the end of July, I once again received an invoice in my ****EN NAME!!!!! I called the call centre once again and I was told that this time it will definitely be resolved, BUT IT IS NOT!!!!! Yet when your "marketing" staff calls to offer me your GREAT SERVICE and they address me by my ****en name, to which I respond that is not my name, NONE of them question it, our is interested in resolving my issue. Instead they just ramble off their stupid sales script and then gets VERY ARROGANT when I refuse to talk to them!!!! How does VODACOM expect me to believe that I am a VALUED customer if that can even get something as basic as my surname correct!