Costco Wholesale interview questions

Applied online, after weeks, called me scheduling for interview. 2 personnel interviewed me, the other one is the store manager. They have a paper with the standard questions and asked like 10 questions. After the interview, told me that definitely they'll call back earlier next week for the interview with the pharmacy manager. Weeks have passed and they haven't called yet so I followed up. Following-up, they are very very rude. After telling me to wait, the next day got an email telling me that I’ve not been selected.

The review didn't take long at all, maybe 15 minutes? The overall process went smoothly. No out of the box questions--they were contained in a pretty typical format. There was also a trainee in the room.