Hi there Jane
Do you have the kennel club registration certificates for these puppies?? Without this you are really cannot do anything- did you see the certificate at the breeders??
Take a look at www.thekennelclub.org.uk/item/1251
this tells you what you should expect from the breeder if the pups are KC registered.
If they are KC registered the litter should have been registered by the breeder under the breeders name, so you can also check with the kennel club if they have any record of this.
Other than that, my advise would be to keep badgering the breeder for this information, as you have no other means of getting the KC registration papers for the pups.
Good luck
Andrea
Veterinarian
bvm&s mrcvs 15 years as a companion animal veterinarian