rakeback on partyskin

I realize this may not be the correct place to ask, but figured I would give it a go anyway:

I am playing a lot of 5/10 tables at Party-poker, but didn't sign up with a rakeback deal. I now have had a look at the obscene amount of money I have already paid in rake, and I realise getting just a bit of it back would make a big contribution to my overall winnings.

I cant make a new account with rakeback directly with party now, since I am already registered, but I hope I can make an account with Eurobet or Empire and play the same tables, now with a rakeback?

Is that correct, and if so do you know of a good rakeback deal I can get??