Google's services blocked on my PC?

I was using the internet last night only for me to get a popup that google.com had been blocked for me and will only be unblocked when I fill a survey, on attempting to fill the survey, it said It wasn't available in my country. I have no idea how to fix this as I keep getting these popups every time I try using any of google's services on all my browsers, I have also tried clearing the contents of my browsers but I keep getting the same block. Please Help!