4G coverage non-existent in a metro area as of 29 January 2021

Signed up in October 2020, 4G 19hours off peak subscription and I was getting around 10-12mbps/4-7mbps, then I moved to a different area and upgraded to the unlimited 4G package with the same speeds 10-12Mbps/4-7Mbps. This is in Cape Town, according to their map I have 4 towers within less than 500m of my location yet as of 29 January my speed dropped to 0.1Mbps/1Mbps, so you're saying there are suddenly obstructions to all these towers in my area, I used my Vodacom SIM in my router and it is fine so not my router . I have moved my router around and the best I'm now getting is between 0.5Mbsp-2Mbps/1-3Mbps. This is pathetic, no reason, no explanation, no response from support. Their website was down and I could not even login to log a support ticket or check for any messages relating to service downtime. Their website was down for 2 days for "maintenance" without warning customers. I eventually logged a ticket on 2 Feb 2021, 3 days ago and have yet to get any feedback on if there are issues with the towers in my area. I have activated FTTH at my premises and as soon as it is live I will cancel my rain SIM. Support Reference ***