My fiance and I got a call on Friday that there was a registry gift for us to pick up at the store (guests can order online and have it shipped to our store). We opened it to find there was no name, just a typed letter with a little message. I called the store and they gave me the name of the mystery gift giver...one of my best friends/BMs! Now I'm not sure if I should give a thank you note or note. I don't know if she wanted to remain annonymous or just forgot to enter her name. Thoughts?