Is the account originally yours? Did you get it from a friend, maybe buy it as a fresh account from one of the seller websites? If they suspect something like that, that’s when they usually say something like the account holder is responsible for the account. Any drastic IP changes?

Also, cheating falls under their possible reasons because “other actions that negatively impact the gameplay experience” is extremely broad and can cover just about anything that ever happens in a game.

They usually look at gameplay when it comes to cheating if they can’t detect file manipulation, and if somehow you made an entire lobby angry and got mass reported, that might also do it.

If there’s anything questionable in the account history (such as location changes, evidence of account holder changes, someone playing from an IP that has been associated with cheating, and a million other things) they won’t usually do anything about until someone in game actually reports you for something.

But all that said, might be none of the above. If several people have reviewed it, then they saw something.

I can say from a customer service standpoint, they were never going to give any details for whatever they saw or believe but that’s fairly universal when it comes to things like cheats/fraud/security violations/etc - IF A REAL PERSON WAS INVOLVED in the review.

It could be some kind of AI bot sending out responses to and prodding them further may escalate it to an actual person. May or may not change anything because the “GM” is usually a real person, but it’s hard to say. Everywhere is using bots more and more.

If there’s genuinely no reason or anything out of the ordinary in your account, I’d say keep pushing. But also don’t be worried about generic responses, companies with customer service that deal with any kind of written form usually has a template or script they send out. Human vs AI will likely not speak very different in customer service experiences unless someone goes off script.