Hi I'm new here and just wanted to know if it costs to get a certificate of postage? Also how can you be certain that the other person is going to send you their book? Also if someone requests a swap and you then accept and choose one of their books - what if the person doesn't want to send their...

I know this isn't being posted by a moderator or anything, but it's really useful information so I hope you'll consider making it a 'sticky'. You can still order free size guides from Royal Mail . Just go to the link below and fill out the information. For the telephone number, it...