Vodacom worst company ever

Vodacom customer care is awful. We have had issues with our LTE internet signal for months now and even after calling Vodacom multiple times a day, complaining on Facebook and Twitter, and speaking to more consultants than I would like to they have not provided feedback or a solution to our problems. We require internet to work as we work from home but we are unable to do that. Vodacom is useless and their customer service even worse. Why do I still need to pay for a service they are not providing? Is there no way of canceling our contract without all the penalty fees? they are breaking contract!!