Why was my request to join the group denied?

These below points may be the reasons why your request to join the group was denied:

1. You have not been on Facebook for longer than 12 months.
2. You do not live or work in the area or the surrounding areas of the group you are trying to join.
3. You are a member of too many groups. Your intentions are questionable.
4. You have no other friends on this group.
5. Your profile is restricted.