Account hacked!

Today we woke up to the nightmare we all fear. Our ad account has been hacked. Someone is running their shitty ads with a 25k daily budget!! We're removed from all access and have basic right. Meta has been absolute SHIT and instead of restricting my account after it was confirmed that we were hacked, they disabled OUR accounts and let the one of the hacker running!!!!!! Please be careful! It might be a long shot but is there a way to figure out who the owner is of the website they're running? It's ellebloom.stellwisepte.com

Any help is greatly appreciated!!!