How do I add, prioritize or delete my credit cards?

Add a new Credit card: Click on the cogwheel next to the Credit card section and select "Add new credit card" option.
Enter your credit card details and then click "Add".
If an error message appears when adding a new credit card, it may be a refusal from your credit card company. Simply contact your credit card company to authorize this new transaction.

Please note, you can also add a new credit card to your account during the payment process when upgrading or downgrading your plan.

Set a default credit card: Simply click on the cogwheel icon and select "Manage credit cards" from the "Manage your payment methods" page.

Then select "Set as default" on the credit card of your choice. 
Remove a credit card: Click on the cogwheel icon and select "Delete".

Please note: if you only have one credit card on your account, it cannot be deleted. You will need to add a new one before you can delete the old one.