Hi @_elena
I feel you, but found the smaller events much more impactful and rewarding than the mainstream big shots. It's honourable that you pitch the big stages, but if they don't want it, it's less your loss than theirs. Go to smaller events instead, e.g. the https://SFSCON.it and maybe pitch again next year.

Edit: Uh, or maybe do it at the parallel #OFFDEM https://infosec.exchange/@realn2s/117478966165129973
Btw. that's where I fisrt met @tommi