Feel like more context would be required tbh. Like if you are contacting support by email you are giving them your email address and they kinda need it to reply to you.

I think its only google certified stuff, so anything else is completely fine.

Everyone in my houses is using it, but I am the only one who knows they are all using it.

Only one way to find out, good thing that these don’t cost any money and you can just ask for a new one.

Maybe take some cash out first to cover any payments you may need to make it it breaks in some way.