Please follow unsuspension request guidelines.
https://community.x10hosting.com/threads/this-board-is-for-all-unsuspension-request.209292/
Your account panel https://x10hosting.com/panel states the reason for suspension. I would say it’s either the domain name needs to be manually reviewed or...
Should really do all at once. The registered domain itself is above your subdomain (ie. x10.network). You would be further exhausting the limit by doing that.