Unfairly refusing service

The service with this company is pathetic, and apparently, that is the case with all the mobile operators in this country. I have been getting horrible service from MTN, so wanted to move my own and all my family members accounts to Vodacom. However, I signed up in December and was told to wait 3 months to get an additional line. I waited until March and asked for an additional line, and yet again I was told I need to wait another 3 months due to a system error. This is pathetic. I want to move 4 lines to the company. I want to give them my money, but they simply don't want my business.