This is more of a comment than a question. I signed up with a Tier and it appears from the dashboard that credits are refreshed at the beginning of the new month. BUT, if you run out, there is also an option to purchase ADDITIONAL CREDITS on top of your normal monthly allotment. Those do not expire, but once you use them, they are gone. Those roll over until you use them, but monthly credits just reset back to whatever Tier you purchased in the LTD from AppSumo. It would be great if Screpy can comment to confirm I've got it right. I'm pretty confident I do. ;)