Multiple Accounts detected. Multi Account unblock requests are currently on hold to address the current batch of requests.
https://community.x10hosting.com/threads/multi-account-unblock-requests.209963/
I think might be confusing the subdomain side of it (which is only 2 allowed) and the main domains (which 3 are allowed) and checking the wrong location for it. Account Manager > Domain Setup.
Only 1 domain pointer is allowed on the account.
Please include details from the account panel https://x10hosting.com/panel which will show why it is suspended along with the reason you believe it should be unsuspended.