Incident detection does not send SMS

I've noticed that with the new 7.10 firmware there is Incident Detection feature.
I was trying how it works and I cannot get it to send SMS. I'm only getting an email when I trigger the function by selecting to call assistance.

I double checked my contact has the number correctly entered with international prefix, all is looking fine.
I have iPhone and know the iOS does not have API to let apps send text messages, but I read the Garmin is using its own sms gateway for this.

Anyone having same problem or know if there's a fix?