Terrible service

The service from Vodacom is so disappointing. Especially the branch in Nelson Mandela square. I am in dire need of an upgrade and work full time during the week. I go in store to sort out an issue and they treated me very badly and have no sense of urgency. They say they can’t help me and I will have to just wait days on end. I can’t stress enough how willing I was to comply - I made an immediate payment in store for an old account that I was told was needed to move forward but thereafter the still tell me that they can’t help me I must come back another day. I need a phone and I am working during the week. This is incredibly frustrating and would like better service? I feel like I am held ransom but Vodacom just because I need to keep my number.