That’s very odd, that someone would refuse to tell you information about animals that you purchased. It is kind of rude. But I will definitely tag the people I trust for Leopard gecko identification. @mblaney and @westridge will be able to help you even without parent information (not saying it would help a lot)
Also they may ask you for better pictures so here is a guy that could help you take those. I know it’s for ball python’s but just apply the same rules for leopard geckos.