That is VERY strange and i would think that this person was not supposed to "sell" or rehome the dog without the breeder's consent, that is why they don't want to give up the info.
Can you pretend you are interested in the dog and ask why they are selling/rehoming at least?
__________________  The T.U.B. Pack! Toto, Uni, & Bindi
RIP Lord Scrappington Montgomery McLimpybottom aka El Lenguo the Handicapped Ninja 10-12-12 
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