Not Able To Get All My Free Coins
Are you referring to the page coins or from this site (gamehunters)....I just went through to collect the free coins and I not only didn't get any (even though each page that loaded it said they had been credited to my account), when I reload the page, I now have less than I started with!
When you login and collect bonuses it records your clicks. To check your previous bonus clicked go to your click history "Show: Latest Links" then select "Check My Click History".
It helps you from clicking the same bonus again and again by hiding it to your list and moving it to your click history.