That size was available. 12s and 13s weren't available. There were only a few 12.5s according to what Hanon wrote on their Instagram. I'm trying to find out if the sneaker will have a WW release or if Hanon will get some more 12.5s.
A lot of them are victims of the 2 pair glitch. And, I saw one guy I believe didn't want them once he got them in hand. The fb Diadora group isn't really a reseller group because we all try to help one another out and keep prices reasonable. I'll most likely get a pair soon myself.
You're right. I feel in this day and age it's really shady to have an all sales final policy. But, people are so starved to have the latest hype they don't care if they're getting fricked over.