InterPoker offered me $20 to play 1 hand. What do you think?

InterPoker sent me this e-mail today:

Hi Kevin,

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As you know you regsitered an account at InterPoker, but I have not yet seen you at the real money tables. So here is an offer available only to you and a select few others.

Play one real money hand at InterPoker and you will receive $20!

All you need to do is play on hand that rakes $1 (£ or €) on any InterPoker Real Money table and the $20 will be automatically added to your account! No Strings Attached!

Your InterPoker Username is: XXXXXXXXXX
Your InterPoker Account Number is: XXXXXXXXX

So I hope to see you soon at InterPoker - excitement you can trust.

[/ QUOTE ]

Has anyone done this before, and how much do you think I am going to have to deposit to take this down, seems ok to me.