Help with Aqua card

[cairns07]

Hi, i recently applied for an aqua credit card.
The credit check was processed the same day. I received a letter dated two days after the credit check was processed asking for me to send in some documentation for i.d purposes.
Basically i'm wondering whether i've actually got any chance of actually receiving the card.
My credit files are okay. i've got a credit rating of 833 with experian.
i'm just not keen on sending original documents through the post if there's little or no chance of any reward. cynical i know.
thanks!