Horrible Home Internet Service

This has to be the worst service ever in respect of HOME LTE INTERNET SERVICE. This service was taken about 3 months ago. The worst ever service, it hardly ever works, speeds are super slow. Customer Care from Vodacom is extremely bad. Full of excuses and play the blame-game. Hardly ever can use effectively. Very often its down or no signal. I am PAYING for a service that is below grade and non operational. Complaints have been escalated in Vodacom but not rectified. Horrible service. Please can this be rectified immediately. We work and study from home and this is costing us time and money, alot of money. Please urgently contact me to rectify.