Useless signal and poor after sales service

I have been with Vodacom for many years, but in a few months when my contract ends, I shall be moving away from them. The signal is atrocious and I'm basically wasting money every month. Their data packages expire after 30 days & whatever is unused does not carry over, so you lose it. So much for ICASA & all their empty promises of airtime & data not expiring. As for work, we'll be dropping them there as well as the signal isn't much better. We can't wait to rid ourselves of this useless company and their terrible signal in an area that is built up by the way. It's not as if we're in a rural area. They assured us of good signal when we signed the contract though. But these were just empty promises.