planevan

I am trying to purchase a product through the store and it requires me to input my phone number for an SMS verfication. I enter my 10 digit number after "+1" because I am in the US but it tells me it's invalid after I submit it. It is the same problem as this post from last year: https://forum.aerosoft.com/index.php?/topic/150101-input-for-sms-verification-issue/ Any help is appreciated. Thank you!