Verification Code when setting up Messenger

I have submitted an issue to garmin but yet to get a response - This make having the inReach Mini useless to a large degree. 

I may have to return the inReach as a result

Here is my finding on this problem with my phone that other may have

i have both a physical SIM card (work) and a Virtual eSIM  (private) on my device 

both with the same network provider 

The verification sms notification work on the physical SIM number only 

Garmin - reached out to me and sorted out the problem from their side - Its was clearly an issue on their system and not the network carrier.

I've been fighting this for two days, chatted with Garmin support, chatted with my carrier support, nothing works. I can't get the phone to receive the text. Garmin says it must be the carrier. The carrier says, nope, not us. There must be an alternative to the texted code. 

Ok, so, after spending way too much time in chats with both Garmin & my cell carrier, I finally got it working. I saw reference to the number the verification should come from (31061) so I texted that number and I had a message pop up asking if I wanted to unblock that number! [How and when it got blocked, I have no idea]. I unblocked it, sent another text [help] and received a reply. I immediately tried the verification and it worked like a charm. For the record, I had checked my spam/blocked folder multiple times and there were no texts from that number in there. Anyway, if you're having this problem, give this a try before spending a lot of time going back and forth with Garmin support.