Yes that is correct and you are right, though it was the op's fault to keep sending an expired document to the system, and of course all casinos always needs a valid document to pass through their kyc system. So, when something like this is discovered the system wouldn't mind automatically bounces their documentation because it's not valid but I believe something can still be done when he might write to support. I believe, from OP Last comment he has gone the valid document but yet still can't process with the kyc since the system locked him out.
I hope I can help you understand this better: the security system kicks in and lock him out due to several attempts of bad documents, which they might consider as an attempt to falsify KYC. If, just by simply write to support and say, "yo, I made a mistake, now I'm locked. Open it again so I can retry until I manage to get it validated, yeah?" That kinda defeat the purpose of locking KYC for security reason.
OP,
hvpebiz, been wanting to ask you this earlier, but I decided to reach my contact and see if they can lift [another] KYC ban for me in a row, since I practically just ask them to dive interdepartment to lift someone else's ban few days apart, and if they can, I'll ask, but I think asking now won't hurt, while we wait to hear from my contact: during all of those attempt, the blurry images and other reason for your ID to be rejected, what ID do you you use? Is it the same ID with <1 month expiracy, or is it other govt issued doc like passport or others?