Have been pretty lucky with it actually. Instead of just ignoring me like a lot of sellers would, he actually got back to me with his mobile number to phone him to sort it out. Which I did.
He pretty much said to me to take some photos of the record to prove that it had cracked and e-mail them to him, and to pick more records that added up to the same amount. Luckily he a had a few more in my wantlist. One being another Lab 4 classic.
Hopefully these ones will be sent a bit better protected.
Thats why the last one cracked, as there was no cardboard stiffener in there and no 'fragile' stickers to be seen.