You can check your current credit balance at any time from the top of your Easify dashboard. Easify also provides detailed usage reports so you can see exactly where your credits are going and plan your campaigns accordingly. Just click on the number of credits and you will be redirected to your transaction history
Note: Credits are non-refundable once purchased. However, since they never expire, there's no risk of losing them — you can always use them on your next campaign.