Can I update my billing address?
Our system doesn't allow a billing address to be changed after an order is placed. Payment is collected at the time you checkout via credit card, so there is no "bill" to send you, regardless of whether the address is correct or not. Changing the address would be irrelevant.
You checked out and payment was authorized with the billing address provided, so the order went through and was approved by your credit card with that address.
What's most important is that we have the correct shipping address for your order so that your prints make it to you. You can view your order, addresses, and even update the shipping address if your order hasn't shipped yet) on our order status page here.