if i bought a gecko from a breeder and that breeder bought the gecko from another breeder do i have the right to contact the original breeder of the gecko for lineage information?
I don't see why not to give it a try. There isn't anything like a code of conduct for gecko breeders that tells you what you should or shouldn't do, so it really depends on the personality of the breeder.
I guess there's a possibility that he/she may think that they don't have time to waste to attend someone who isn't their direct customer, but I think most breeders would have no problem about telling you. I wouldn't at least.