No points from me

I did a survey last week, for 25 points. the points were not added. I sent them an email, to which I received a NOT READ receipt almost immediately. I did that about 3 days in row, with the same thing happening. Then I went onto my profile and sent them the details of my query in the contact box. I have not heard from them at all. There is no contact number anywhere and my points are still not allocated, almost a week after i did the survey.