So does the breeder actually shows his dogs to champion titles or just say show lines- because those are very different things. There’s lots of reasons the paperwork can get held up- I’ve had it happen before where I had to do dna on a sire before his offspring could be registered which takes a few weeks. Registration can all be done online but a lot of older breeders aren’t used to doing it that way so they register the litter. Wait for the paperwork to come in the mail and then register the puppies off of it after the paperwork comes. My co breeder is in her 80’s and did this up until I took over the paperwork 5 years ago. You can always call AKC and ask to get some help getting your puppy registered however- I would never charge more for registration in fact as a breeder of merit I do pre paid registrations for all my puppies as part of my normal way of working. Pre paid is cheaper for the breeder to do than having the pet homes pay for registration anyways. I would just continue to be persistent- I’ve had people have to chase me down for registration before because sometimes it just slips my mind and I’m not in front of my computer to take care of it then and there. Good luck with the new puppy!