Purchase at Starfleet Commander using a Rixty account:
To see screenshots, click numbered paragraphs at left
Visit the Starfleet Commander website at http://playstarfleet.com and select "Credits" from the toolbar at the top of the screen.
Scroll all the way down the page to "Buy Credits".
Use the arrows to locate "Prepaid" and click on the "Prepaid" option.
Select the Rixty option and then select your amount. Click "Buy Credits" to proceed.
Login to your Rixty account and complete the purchase. If you need to add funds, click a payment method and follow the prompts.