Have you ever seen this happen?

Yeah thats a scam. I get a lot saying a package cant be delivered due to wrong address i dont even answer them because i know that I'm not expecting any packages. I got a phone call last week the guy said, "grandma " i said sweetheart if i'm your grandmother then you are from the future because i have no grandchildren and i hung up. Damn am i that old smh

I've had several scam email telling me I can't receive emails because my mailbox is full.

Yes once many years ago. Idk why

Seems like it’s the carrier telling you to add funds