guinnes book
Ah brilliant - that site clearly refers to this exact thing, either by email or post. I also visited the Guinness book of records site and they clearly discount this as sad hoaxes aimed at kids. "Guinness World Records does not accept any records relating to chain letters, sent by post or e-mail. If you receive a letter or an e-mail, which may promise to publish the names of all those who send it on, please destroy it, it is a hoax. No matter if it says that Guinness World Records and the postal service are involved, they are not.
We are sorry if you have been taken in by a chain letter claiming to be legitimate and are now disappointed to learn that it is not."
Just let my kid read it for herself and now she understands what it was really about. Thanks for your help people!