Lost your passkey?
Use another passkey
Any passkey on your account works, including one synced to a new phone.
Get a code by email
On the sign-in page, choose the email option. The code goes to the email on your account, and signing in with it lets you save a passkey on this phone.
Ask the business
No passkey and no email? The business you text can confirm who you are. Then the next sign-in link lets you set up a new passkey. This never happens inside the chat itself.
Start fresh
A new account starts empty: nothing from before, no saved card. Your old account can't be opened with a phone number or a text message.