Rain ignores support tickets

I bought a 5G router from Rain in March. Everything worked perfectly until about 10 days ago. Our wifi speed is suddenly measuring barely 2Mbps. I logged a ticket and followed up several times with no luck. I have not received any feedback on my ticket or any emails following that. They can't be reached telephonically and in the meantime we are left hanging. Both my husband and I are working from home. The poor data speed is really effecting our work. I accept that there are challenges, but not being able to work for 10 days and no idea of the expected time frame going forward is totally unacceptable. I am paying for 5G. It worked before perfectly before. Just being ignored, totally unacceptable.