I got it October 27th and the next day it already said it expired, I don't know if this is a technical issue, so I hope you guys can maybe fix this bug, thanks.
Hi, in the current battle pass you can only get 1 day of premium not 3. See the attached image.
Also, please check this article for any more questions related to battle pass and stars.
Oh sorry about that, thanks
Customer support service by UserEcho