From memory it was just over £15.00 each way. I packed the frame in a flat screen television box, which fit quite well. I braced the forks and rear drop-outs with piece of wood with screws to hold it in place and stuffed the rest of the box with plenty of bits of polystyrene and bubble wrap.
If you use LSN, it's best to phone them as they don't check their E-mails very often. They have funny accents, but were very helpful.