Welcome to the Candy Crush Saga Community
Do you have a question or need help with your game? Ask the Community.
I had that problem myself; after a few days of waiting a fb friend told me to check all my emails my phone at the time marked it as spam and trashed it. Luckily it hadn't been deleted.
If that doesn't work go thro thisugh google instead of facebook ask for code through that app.
Hope this helps