Can I change my billing details after placing an order?

If billing details need to be corrected, change it in your Account > Addresses page, and then contact us as soon as possible and explain exactly what needs to be fixed. Do not leave it vague. Say whether the problem is your name, company information, billing address, email, tax information, or something else. Some corrections are easier to handle than others, and timing matters, especially if the order is already being processed.