alot of breeders will use the same strains to produce different ones just make sure you order from breeders who have been producing for along time i find thats your best bet i order from true north seed bank and there stuff all seems to be great never disappointed.
i had the same issue with my order i placed it in march and i finally got it just a week ago usps sucks right now all my other orders with them were never like this i love there company and i will continue to order with them.