Vodacom signal Walkerville

I live in Walkerville. Most of the time we have no internet coverage and when we do have it it is hardly usable. We have to pay our accounts every month for a service that is non existant. When you by data the chances of you being able to use it befor it expires is very slim so hundreds of rands are being thrown in the water every month. For goodness sake we dont live in the Jungle. There a supposed Vodacom tower a few blocks from me but that does us no good at all. It is shocking that a big company like Vodacom cannot sort out their signals.