Since you are in Europe and not in North America, and since you probably purchased the puppy from another country, is there any way you can contact the Kennel Club for the breed in the country of origin? In Canada we have the Canadian Kennel Club, and in the States, they have the American Kennel Club. Is there something similar for Europe, or does each country have their own? We also have individual clubs for individual breeds.
I would start with one of those groups and contact anyone else whom you know has contact with this breeder. From your previous posts, I know that you are a diligent breeder with honourable intentions.
This breeder probably hasn't registered the litter yet and that might be why you have still not received the Pedigree. I am still waiting for Henry's, and he's a year old. Fortunately, I know exactly where his breeder lives, as well as others with whom she has regular contact, so I'm not worried.
Good luck to you. I hope you manage to get it sorted because as you well know, she will be of no use to your breeding program without her Pedigree.