My bank changed my credit card number - will I be able to pay for my domain's registration?and
Will my domain be renewed?and
I don't want my domain any more. Can I get a refund on the rest of the year?The Blogger / Google Apps domain setup process is so well integrated, that many domain owners never have to worry.
If you purchase a domain using "Buy a domain", your domain is probably set to auto renew, on the anniversary of initial setup - but it probably won't hurt to make sure. You will need access to the Google Apps administrative account for the domain, which you should have setup when you bought the domain.
From your Google Apps desktop, click on "Domain settings". In the "Domain names" display, you'll find the essential option
Automatically renew my domain registration every yearand below that will be the reminder when your next renewal date is scheduled.
You change and verify the credit card information in the Google Checkout wizard, for your Google Account. Just make sure that your current and active credit card is shown, in the Checkout display, when your renewal date approaches - and check your bank statement afterwards. This also probably be a good time to verify that your Blogger account is based on an active email address.
If you choose to not renew the domain, just uncheck "Automatically renew my domain registration every year", then migrate the blog back to BlogSpot before the domain expiration date. If you decide to give up on your domain during the year, you can migrate back to BlogSpot any time - but don't bother trying to get a refund on the registration fee.
Again hoping that your Blogger account is based on an active email address, a final option would be to use manual domain renewal.
(Update 2013/08): Recently, Google Apps redesigned their dashboard GUI - and greatly simplified domain registration payment and renewal.