Vodacom pathetic service

Bad service again from Vodacom. Was it a crime to take out a contract with them. They do an application they decided which number to update as a primary number without asking me now the whole world is getting updates on my contract instead of me. Now I call the call centre the first person I spoke to said she will update but instead she cut the call on me , second person said they can't I have to go to a branch. Now I'm expected to take some time from work so I can go to Vodacom just so they can update my details because they failed to do it the first time. Last contract I will ever take from Vodacom.