@ataradov -- last time you checked, did you run an oligarch empire anywhere? 
If I did, I'd like to know. May be I don't have to go to work on Monday.
The only things I can see them considering as "irregularities" would be use of VPN for registration and the name on the credit card is my full legal name Alexander vs preferred name Alex on the account.
But I don't see why any of this would be a problem. VPNs are common and in many cases unavoidable. And if payment method is an issue, they could have told me and I would have used PayPal or something.
I don't mind providing any supporting info they need, I just don't want to be in a position where I try to register account over and over trying to guess what they want. Which itself could be flagged.
It is also too bad that you have to provide all the info at the registration time, so there is no way to solve one issue at a time. It would be fine if they allowed me to have an account and have a look at the control panel, but ask for a payment method before adding any service that costs money.