VODACOM DISGUSTING NETWORK AND SERVICE

I took out a data contract with Vodacom, over the last few months the network in our area has deteriorated so badly that I am unable to use my phone at home. After constant calls to Vodacom, no one gets back. At my wits end I called again only to be told there is no history of my complaints. I was told it will go to the engineers for assistance, ref ***. I miss a call, then I get a message to say they have new towers planned but no ETA. Not what is going to be done now to help me use my phone. NOTHING! I'm told I can't cancel my contract as I committed to it even though I can't do anything on it. Then to add insult to injury they give me 2GB as a gesture of goodwill on a network I CAN'T USE!!! HOW IS THAT LOGICAL!!!!! I'm at my wits end, all the other network providers work in the area, how is Vodacom getting this so wrong without consideration to their customers paying. If I stop paying I'll be harassed without thinking I now need to go get an alternate provider and pay for data when I can't use what I PAY FOR.