To start adding your card details:
Go to the Wallet section at the bottom of the app
Hit Default under payment methods
Under fallback methods, hit add card
Hit Add then enter your credit card details
Depending on the bank, it may or may not ask or send an OTP
If your bank sent an OTP, Enter the OTP in the provided space below
Once authentication is complete, Your newly added card appears under fallback methods.
If you still need further assistance, please chat with us in-app, on the website, or email email@example.com.
Our friendly Diner Support Team will be more than happy to help. 😉