Little to no network coverage

We live on a farm just outside of Louis Trichardt where we run 3 businesses. We have 3 Red VIP contracts and about 4 others. <br> <br> We have little to no vodacom reception. Our customers cannot reach us. The 2G and 3G does not work. That means we loose about 15G of data every month.<br> <br> I have emailed customer care but have had no reply at all. <br> <br> We are fed up and will change if nothing is done soon!!!!