If you no longer want your dog because he is not the size that you think he should be....take him back to the breeder....you don't deserve to have him. (In my honest opinion)
Dobermans are not meant to be giant dogs. I can understand wanting a dog with a little substance, but I think that with most dogs, that comes with age... Expecting a breeder to offer you a replacement puppy because he doesn't live up to your standards in SIZE at ONE YEAR old, is just ridiculous.
If you truly bought him as a working prospect, then be happy that you have a smaller, more agile dog. Saying that he is not really a doberman because he doesnt weigh what you think he should.... I don't get it.
I have a male who is very gangly. He didn't start filling out at ALL until he hit two years old. I always thought he was just a really small male. (Which does not bother me at all)
Rommel, just over a year old
Rommel, 1 1/2
Almost 2
Almost 3
I am sorry if you think I am rude, but I think your expectations are way off.