Sorry this happened to you dude. I don’t want to be harsh but, out of the crimes ignored in this era of AI clean rooming, book destroying distilleries and a despondent ostrich adjacent legal system you do seem to be one amongst a deluge of cheated individuals.
Hope you manage to get it sorted but I have no idea how that would go down at this point. I’m sure at least one of them could claim they copied it off the other ones and then you’re shit out of luck.