Unusable Home LTE

I have been experiencing issues for over a week with my Home LTE on number. I have called 4 times and each time been told that a line synchronization will fix the issue. I was told that a fault was logged with the lines department but since then my speeds have deteriorated.

I have a pay as you go Vodacom SIM that works perfectly and data speeds are fine, so I am assuming it is a routing issue on the tower in my area. I have tried the SIM card for my home LTE in my cellphone and the speeds are just as bad as when it is in the router.

They have not responded to my email requests either.