If I send all the documents, won't the BC staff take credit on me?

You don't have to worry. Copies of documents are the normal international practice of confirming your identity. There are no cases where a bookmaker's office has used these documents to arrange loans. If you are still worried about the further involvement of your documents in financial frauds read review , it is better to register here, this is the official BK, so there is nothing to worry about.

Yea, every company practices identity confirmation, especially when you use money in their service. It's prevent illegal actions and etc. Whenever i got account from game accounts store they always check my info and my indentity before I proceed the checkout, as it's for my and their security reasons. So in that way you have nothing to worry. Have a great day!