Well, generally speaking, it’s a little hard to understand how you couldn’t now “for sure” in each of those cases; the “Don’t think” part kinda leads me to believe you recognize the possibility of one or more of those issues being involved in your situation.
That said, I have never known DH to not provide an explanation for what, if any , action they have taken. I do imagine that in a case where they consider the problem to be both obvious and serious, that they may refer it to legal review before responding, and we are “early in the week”.
If you keep sending tickets, they should eventually respond - without knowing what was on your site, or how it was being utilized, all we can do is guess as to the circumstances. I’m wondering what makes you think the account is “suspended” if you received no notification of that. There are other reasons that can be involved with why you can’t manage your site. Only DH knows for sure.