I know a lot of thermals have a different zeros built in, so let’s say you zero at 50 and in the field it’s on 300 you’ll have issues, ask me how I know. My alpha is pretty easy to bump the settings wrong when you are fumbling around night.
I had to cancel mine from my laptop in the hidetv store under manage subscription..it wouldn’t let me do it on my mobile. I don’t think they are using PayPal as an option anymore.