Step 1:  Click the AXEL icon in the menu bar (top-right corner) and select the “AXEL Go (Upgrade)” option.

Step 2:  A payment page will open. Select your payment plan and click the “Next” button.

Step 3:  Click the “Check out with PayPal” button.

You will then be redirected to PayPal, where you can complete the purchase through your PayPal account.