Impossible to get out of contract

Vodacom only cares about money. Getting out of a contract is impossible, does not matter what one's circumstances are. Be very careful before signing a contract - cellphone or internet - with this network provider. I have to move to a farm where there is NO Vodacom reception at all. I made it clear to Vodacom that I cannot use the internet anymore as there is no coverage (their fault) - but they still hold me accountable for the contract.. It is not my fault that I cannot continue with this service.. How is this right?