I Have Been Hacked On Zynga And Was Wondering If I Could Reclaim My Chips?

Hi , yesterday I was playing zynga and all of a sudden my chips started to disappear , i quickly logged out and tried to change my password but they had changed my password for my email , as they must have guessed the security question. My security question was where was my mother born and as she is on my friends list, someone must have looked at it and found  it out. Then i went back onto facebook and tried to log in and that also had been comprimised! My facebook password had changed on it too! I really need help I can give you as much information as I can and im a very regular customer on zynga , i must have bought around £300 worth of chips over the last few months , so just wondering if i could claim them back as there was nothing i could do! Thanks