Well, This Is Awkward . . .

Consolation
Fri, 22 Feb 2013 12:23:48 +0000

I think it is usually a good idea to assume good intentions, so I wouldn’t let some of the elaborate schemes suggested above pollute my mind if I could help it. She sounds like a bit of a ditz, who could easily have screwed up such a thing.

I’d take the stance that this resulted in your discovering a great new restaurant and having a delicious meal. Since the gift card was a thank you, you don’t need to specifically thank her for it again. If, and only if, she asks whether you got the right card, I’d say that it was for $15, but you had a wonderful meal and discovered a new restaurant and she really shouldn’t worry about it. (If she has her wits about her she would send you another gift of some sort, but it sounds like she doesn’t. )