Rain 4g internet service provider poor service

I had taken a R250 package from the company which is 19 hours uncapped per day. I'm using a Huawei B315 LTE router. Their internet download speed is 0.01 download and 6.3 upload. And after midnight the highest I got was 0.23 download and 0.43 upload According to their website they have full LTE coverage in my area. I was told it will be sorted on the 2nd day and it hasn't been sorted till date. I had taken this contract on the 26th of March 2021. I even moved the router around and put it higher. Changed the settings. I put the router higher I even did a factory reset. They really don't bother to help anyone. It seems like they throttle the internet from the second you sign the deal.