Unable to make calls

[fongodude]

When i put in the number and hit dial nothing happens.

Also the hamburger menu works intermittently

I have reached out to technical support multiple times, i got a bunch of boiler plate answers and answers to questions i didn't ask. After much back and forth i was told to delete the app and reinstall it. I lost all my text messages (including the contact the CRTC with complaints texts) and the re-installation still did not fix the problem
Now they stopped replying.

I don't want to lose phone number to inactivity, incoming calls work but apparently thats not enough to keep the number.
Any suggestions? Device is a Samsung Galaxy Tab A.