Reputable breeders crop their puppies before selling them unless they are euro, then the puppies may or may not be cropped.
I would suggest you slow way down, research dobermans, the common diseases they can have, what health tests the PARENTS should have BEFORE being bred and what makes a good breeder.
It sounds like your choice of a breeder may not be wise.
To get you started. http://dpca.org/breed/breed_health.htm