Error code 10900, 10901, 10902,10904 are the most common errors codes. (See below)
You may add your credit card to your PayPal account and pay using PayPal.
Here is how it works.
1. Make a PayPal account if you do not have one yet. (www.paypal.com)
2. Once you have made an account, please log in and click on Profile
3. Add your credit card
4. Once you have successfully added your credit card, you should go to www.ogplanet.com and go to Get Astro page.
Make sure you select PayPal as a payment method and you will be redirected to a page below. Log in again and select your credit card.
This would address most error cases. If you still have problems, it might be due to your bank which issued your credit card not allowing it. Please contact the bank
OGPlanet Billing Blog 