OK so I bought Field Day tickets off a girl who couldn't go anymore, but the numbskull managed to post them incorrectly (i.e. not next day delivery as agreed) and they finally arrived yesterday - nice work on that 23 day turnaround Royal Mail!

Anyway, she's ignoring me now despite promising to refund me as it was her error, so I'm in the market for revenge tips.

I have:
- her email address
- her mobile phone number
- her facebook
- her full name

Aside from signing her up for loads of spam and various midnight wake-up calls, any further ideas?