Hello @user39436 ,
It appears your account is currently under review. You'll need to speak with our Review team over the phone to securely discuss your account status. Reviews are an important part of our business, as it helps mitigate spam and scam accounts, ensure compliant emailing, and to safeguard sending reputations for you, our other customers, and for our company as a whole.
Yep, support in this case would be Review.
You likely received an automated email confirmation as part of them cancelling your account, which is a default setting in our system when cancelling accounts.
If the Review processes determine an account must be terminated, then they have the ability to do that. For more information regarding your specific account, you're welcome to contact them.