If a user loses their phone or changes their phone number while using Affirm, they may need to update their account information. It is important for users to maintain accurate contact information to ensure the continued functioning of their Affirm services. If the phone number linked to the account is lost or changed, it may limit the ability to receive updates, notifications, or security codes that Affirm may send. Users should log into their Affirm account on the website to update their phone number and any other relevant details. This will help to maintain seamless access to Affirm's services. Additionally, users may want to review the security settings of their account to ensure that it remains protected. For specific guidance on this process, users may want to refer to the help sections available on the Affirm website for detailed instructions and support.