When I purchase additional licences I can't review when the credits where added to the account.
ISSUE: we can only reveiw the 'credit usage' on the status page and even the reports only provide usage details.
OPTION1: It would be great to see when credits are applied within the bar-chart (like a side-note or new bar?).
OPTION2: how about a cumulative chart to show how the credits are tracking (including addition of credits with usage), much like a burn-down chart (see image below)

If you like this idea, please up-vote.
Cheers
Nik