Storing CC problem

Problem

Customer ticked the "Save credit card" checkbox on the last checkout step and placed an order, but saved cc is not available on checkout next time.

Use Case

The most possible reason is: you use the sandbox Authorize account in "Test" mode. 

Solution

You need switch Authorize account to the "Live" mode:

1. Go to the Settings page

2. Click the "Test mode" link

3. Switch the "Transaction processing" to the "Live"

https://community.developer.authorize.net/t5/Integration-and-Testing/Create-Customer-Profile-from-Transaction-in-Test-Mode/td-p/64058