Vodacom's weak signal performance.

Me and my family have complained about the signal quality and strength for years now. There are times the signal says 4G 2 bars, yet when you go online the internet says that there is no connectivity. How this is possible i have no idea. Furthermore, where i live now in waterval boven emgwenyia it has been one year now that we constantly complain about the horrid signal strength and quality, however it seems that vodacom has no intention of fixing this problem. We have more than 5 contracts with them, and being unable to use the data you get at home is absolutely frustrating beyond belief.