Maybe she started getting cold feet after looking at what she sold them for and what she was seeing them go for in theopen market.
Its just weird that growgirl would get one item out of 2 (letter) and then an empty box? I do not think that the seller had áccidentely' left them out because, if she did, surely she would have noticed by now - 'ooh, I have 4 cards that were meant to be in that box I sent sitting on my table now'?
Or another possibility, is that, yes - she DID accidentely send them off to someone else, and I do not think that we'll be seeing those cards back, in that case, unless the recepient is very honest.
I still think I smell a rat though - how can you just send off very carefully wrapped up PACKAGING???

I'm with you,It's really fishy!