POOR SERVICE DELIVERY !!!!!!!!

In Oct 2017 I opened two contracts at Vodacom under my moms name as I was not able to do it under my name yet. In the start of February 2018 I went to Vodacom Clearwater to change ownership of a cellphone contract from my moms name to mine as I receive a cellphone allowance from my company. I was assisted by a lady named Monica who was very rude and only spoke in African languages to her colleagues and did not explain to me whats going on so I did not understand was the issue. I asked one of the other ladies whats going on and she told me head office needs to process the application first it takes up to 48 hours. I asked Monica to get back to me. A week went past and she never came back to me I went to back to the shop only to find out my papers were still on her desk and never sent through to head office, the manager Bianca told me she will get this sorted. After finding out I need to change my contract I went back to the shop Monica was off that day I asked them to tell her to phone me Monday which she never did I went back on Tuesday afternoon at 17:00 where she still did not phone me back I asked to try and only put one contract on my name. She told me she can only do it the next morning as head office to needs to cancel the previous application. She phoned me to tell me that she sent it through the following day. 3 weeks later still no feedback. I also escalated my issues to head office still no feedback. I'm very unhappy about the service I have received from Vodacom. I have been with Vodacom on the phone a couple of times each time it was over 20 minutes still with no luck to help me solve the issue. Then in Feb and March I received an account as well where I had to pay over a R1000.00 extra on my account both months for additional data where I clearly stated to the lady at Vodaworld to put a limit on account when I opened it and she told me it was done. How do you bill someone when they have asked for a block/limit to be put on a contract?????? And if I dont pay it they block your number!!!!! WHAT DO I DO NEXT??????? This a ridiculous. Im definitely not renewing my contract with Vodacom