Rakeback: Opening and Closing Accounts on Non-Party Sites

[THWAP!]

Hey,

I tried using the search function. Almost everything's about party/skins, et al. I want to know about the following sites:

-Absolute
-Full Tilt
-UltimateBet

If you already have accounts with them, is there any way to get rakeback? Should you close and then reopen accounts? Or, should you (ick) ask support?

TIA