NO SIGNAL ❗❗❗❗❗❗❗

I've been using Rain for a while and I stopped using it because of bad signal..and that was in September. So I started using it last week Friday... Same story.. I thought maybe after a few months it will be sorted... But nothing... Logged a call. Didn't get a ref number nor a call back from the network department... Only time I have proper signal is when I leave home... But now I'm on leave I want to be at home... So I'm buying additional data but I have paid Rain?? I can't even perform a speed test... And if I do the upload speed is higher than the download speed... I would like this issue to be resolved ASAP... I can't buy additional for the rest of December. If that's the case I want rain to refund my money that I paid last week Friday...