im looking to buy a jack russel pup, im new to buying dogs rather than home bred collies on the farm. theres some advertised locally and the woman answering the phone was polish, living in a rough area of nottingham and wants £50 deposit. could this be a scam or should i give them benifit of the doubt. what would you advise, thanks, ps im after a smooth coated, colour not too fussy but prefer tan and white.