I prepared some payments and left them in the cart. The next time I signed in, the items were no longer in the cart. What happened?

There are two different carts depending on the authentication you use to sign in. 

Payments that you prepare when signed in with two-factor authentication are not visible in your cart when you sign in with your email address and password. 

Please make sure you sign in using the same authentication method as before to find your preselected payments.