NO SERVICE FOR A ROUTER NOT WORKING

I have a Rain 5G router which has not been working since Sunday afternoon on the 4th June 2023, since Monday I have been calling the call centre with no assistance. On Monday I was told that the issue has been logged with the technical and no reference ticket number could be given. No one contacted me. On Tuesday I called again and I was told I need to wait for a call from the technical team which did not happen. Wednesday I called again and was told the issue has been escalated and all managers are busy there is no one else to help me. To this day there is still no assistance I have received, I work from home and I have been forced to buy data on a daily basis but I will be billed for all the days on which I have not been provided with a service. Really disappointed with the service.