Your reading something wrong. Severely wrong.

They are asking for certification of genetics. I am also going to assume they are telling you if you can't get verification/certification (which any breeder can do) of the genetics that you must supply a 100g sample in order for them to test. They may be asking for 100g sample FROM SEED (vs from clone) but I don't think they are asking for 100g of seeds.

It would be best if you would cite your source (show us what you read) in order for us to come up with the correct answer. From this point of view it seems like a misinterpretation of what you read.