Yes the advertisement offers are very Cheap, And OP just i want to know one thing is your traffic Supports by Google Adsense means the Traffic is Real Human Traffic or Else That is Bot Traffic. Please clear my Question OP.
Google Adsense doesn't accept PTC sites. So I can't use it. There is not bot on the site at least now...
You can check the "clicks" and guess that they are bots or not.