After you might have paid for the activation code to access https://account.printairtimeonline.com as explained here, you will receive the activation code in your email.
After you receive the activation code, go back to the portal @ https://account.PrintAirtimeOnline.com
Click on “Get Activated”
You will see a registration window similar to the one below :
Enter your full name, email, username & password you want to use to sign in and the activation code that was sent to you.
Click “Activate Me”
Your account will be activated and you will be able to sign in to the “users portal” with the username and password which you entered during the activation process.
You can login to printAirtimeOnline portal at : https://account.printairtimeonline.com
You can proceed to upload epins to the portal for printing.