Party giving me 30% up to $150?

[GoCubsGo]

I just registered with Party Poker and after confirming my email address, was taken to a page telling me I could received a bonus of 30%.

Dear Player,

Thank you for joining PartyPoker.com. Your email address has been confirmed.

Start winning REAL MONEY playing poker online! Make your first deposit now at PartyPoker.com and receive up 30% up to $150 EXTRA on your first deposit!

How come I've always heard it was 20%? Will I still get the 30% even though I also used PSO, which told me it was 20%?