Cannot receive 2FA or send out SMS

All settings were checked and verified by Store associate and by Tech Support many times with power off and rebooting. Same issue when the SIM card was removed and installed in different phones as already mentioned in my post. The common thread is the cell phone number. Now it is escalated to "Telus Engineers" and if Telus cannot fix this issue, then it says alot about the company. A sugestion as a simple workaround fix and floated by many is to reset and clean up my number and port back to my account immediately without my number getting locked to someone else phone. As background, I have had this numbers with Telus since 2001. Although I can receive Telus Service text messages but I cannot respond back so if will be difficult to port my number to another provider (Rogers, Bell, etc) since I cannot respond if Telus texts me for approval to port. It is a Catch-22 situation. iMessage goes through if the Wi-Fi is turned on from an iOS device to an iOS device but fails when there is no Wi-Fi. Fails to receive or send when send to an Android device.