Denied to activate account because previous device owner didn't pay his bill

I bought a Inreach Mini second hand for my son who is planning a bike trip from Ushuaia to Colombia (South America). He leaves next week. BUT Garmin denies to activate it until previous owner contact them for a billing problem (I guess he didn't pay all his bills).

Is this normal Garmin threats its future customers? I want to buy the service and I will be glad to pay why should I be taken into hostage because of someone else action? This is never mentioned anywhere on Garmin web. This does not happen when you buy a second hand smartphone (unless it has been reported stolen which is not the case here).

PLEASE GARMIN RECONSIDER YOUR SURREALIST DECISION AND LET MY SON LEAVE SAFER TO HIS TRIP. ACT URGENTLY!!!