Thanks for the replays!
I gave them a description of the content - it is going to be my personal business card and is going to be used mainly for the e-mail functionality. But this is not enough for them.
I don`t want to send my scanned ID, because it is illegal by my country laws, because they have not explained and have not stated any precautions they use in order to keep that information safe and last but not least it is not in the Terms and Conditions, so it is probably a discrimination practice...
I will try to convince them to pay the domain registration and transfer the domain...