Cannot Receive/Make Calls Late or No Text No Short Codes - HELP- PLS

My Smarty SIM shows full signal but Service State says “Out of Service.”

I cannot make or receive calls or texts.

I have been back and forth with Agents. Although polite and helpful they cannot solve my problem. 

My SIM number is 8944200205748063009

APN is mob.asm.net.

Network Status: SMARTY

Mobile Network Type: 4G

Service Status: In Service - Was saying Out of Service

Mobile Network Status: Disconnected

I have reset network settings and tried manually selecting network.

Can someone check if my SIM is properly provisioned for voice and IMS registration?

Can this be treated as a matter of urgency please? 

21 days and counting...