Used the wrong bonus code, help

[twolf]

I had signed up for Empire over the weekend and emailed rakeback.com about all the details and such. I went to check my account today and it had nothing in it and it turns out I used the wrong sign up bonus code (I used bonuswhores.com).

Is there any way I can switch either the bonus code I entered or switch to using the bonuswhores rakeback(if they have one)?