m0useanswered grow question 8 months ago If the brand/breeder who develops the seeds can't reply to you via email don't grow their products. Its telling of the quality when they don't stand behind it or can't offer any support.
If you're after the strain name then get it from a breeder with good credibility, Also email some good breeders and ask them, do you have anything that is similar to this strain and name the cross its comprised of. google says its something along he lines of Blueberry x Grapefruit x African sativa.
Sounds nice and fruity. Likely was a clone only strain or at least the one that won the award.
Seed finder says that reefermans seeds cross is not the same. it also is not listed on their website so they discontinued it by the looks of it. same with the next gen seeds. not listed on their site but is more inline with the lineage that google was talking about and whats listed on leafy.
https://en.seedfinder.eu/strain-info/El_Diablo/Reefermans_Seeds/
https://en.seedfinder.eu/strain-info/Diablo/Next_Generation_Seed_Company/
Also a list of all their strains with diablo in it.
https://en.seedfinder.eu/strain-info/Diablo/
I'd just get something that is a blueberry x grapefruit cross with some sativa in it if you can't find it.
Good Luck!