Party WOWREAL bonus.

When I registered with Party (yesterday) they had an offer giving you 20% bonus up to 100$ if you used the bonus code WOWREAL on your first deposit but the signup bonus of 20% up to 100$ cancels it.
So either I misread that the bonus was only available for the first deposit or it is a complete joke.
If anybody knows anything about that it would be great.
Thank you !