Need advice on a 50% party bonus

So, I signed up with party long ago just for play money account. I forgot about it and I played on empire for a bit and left after a downswing a month ago. Now, I got an email from party saying I can get a 50% up to $100 with 5x if I deposit. Can I do that even though I have an acount with empire? I really don't wanna deposit $200 in there to have them taken away from me.

Thanks.