Got this in my email today:
Pay online with Visa Checkout and Chase Slate and save time by not having to re-enter payment and shipping information. Plus, as a valued cardmember, receive a $10 statement credit when you sign up for a new Visa Checkout account and enroll your Slate card between September 15, 2015 and October 31, 2015. This offer is limited in quantity to the first 90,000 customers who respond, so take the following steps to receive a statement credit:
Step 1: Create a Visa Checkout username and password.
Step 2: Enter your Slate account information and shipping address (you only have to do this once).
Step 3: You are enrolled in Visa Checkout and will receive a $10 statement credit within one to two billing cycles.