Few options are available:
Option 1: Search your email inbox for "Cleeng receipt". Have a look too at your Spam/Junk folder. Once found, click on the link inside the description and re-enter your credential if necessary. Make sure you use the same email address or Facebook/Google access as you did for your initial purchase. It should work!
Option 2: Clear your browser cache. You can find how to do it
here. Then follow Option 1.
Option 3: If it still doesn't work, possibly your initial order didn't go through. Please place another order. File a refund inquiry below mentioning your Cleeng receipt number(s). We'll proceed with refunds within 72h after the event.