If you need to make changes to your payment info, such as your credit card's number or expiration date, you can find it by clicking your username in the left sidebar of the website when signed in, and then "Membership status." From here, you can find the link to update your payment info.

Here's a direct link to the Membership status page: 

https://www.eatthismuch.com/account/membership/

Here's a direct link to the page to enter your new card info:

https://www.eatthismuch.com/change-payment/