Backdated pay after changing jobs?

[pushthebutton]

Hi,

I left my previous job during pay negotiations. The pay deal should have been finalised and awarded on the 01st January 2011. I left my job on the 17th April 2011. Am I entitled to the back dated pay for the period I was still employed? My first contact at my old company has just told me no, but I'm not ready to give up just yet.

Does anybody have any experience?

Thanks

P