"The phone number provided is not currently in a supported network"

Hi there,

I bought Garmin InReach Mini 2 in the single official shop in Yerevan, Armenia. I downloaded Garmin Messenger app for Android. I opened it and on the page 'Verify Your Phone Number' when I input my armenian number starting from +374 i see red text saying "The phone number provided is not currently in a supported network". I presume this makes your device an unusable piece of brick for me, right? And I better return it fast since it can't provide any service in the county i live in?