since May I have not been able to earn any Free Credits through Peanut Labs
What happens when you hover over the peanut icon directly under the Take Surveys tab? In chrome, when I hover my cursor over it, the link indicator in the lower left of the screen shows the path to my account, including the ID #. I don't know whether that will work with the spinner.
I get the bubble spinner in IE, which doesn't show the peanut icon. I'm assuming that is the case with you as well.