Poor signal connection!

I'm highly disappointed in Rain internet service, been experiencing poor internet connection for the past 3 days, contacted their customer service, was advised to reboot my router, which I did. Connection was restored for only a short while, now network signal is poor again I upgraded from 4G to 5G because I wanted a faster internet service and also because my family is working from home, I'm highly disappointed in their service as this is not the first time I've had this issue If Rain does not make drastic changes in terms of improving their services, unfortunately soon I will also be canceling my service with them. Disgruntled customer!