Advant calander – Happy Street Review

I have been trying to finish a quest that requires the advent calendar. I bought the calendar on December 8th but it would not let me open the window. It said advent season was over but Christmas hasn’t even happened yet so I’m confused. I can’t finish the quest now and it’s really annoying. Am I doing something wrong or is the game being dumb?
Review by m.s.00 on Happy Street.