Yesterday I booked a $129 pre-paid Starpicks room at the Sheraton Brooklyn. I then signed up for American Express’ new Facebook promotion where you can get $40 in statement credit for Westin and Sheratons, plus discounts at a handful of retailers (see my post on the topic here).This morning, I got the following email:“Dear: Points GuyCongratulations! You saved on your purchase by using the American Express® Card you linked with Facebook. Expect a statement credit in 3-5 days.Remember to visit “Amex: Link, Like, Love” at http://aexp.co/amexFB or explore Facebook Places to find more deals and experiences you’ll love from American Express!See program terms at https://sync.americanexpress.com/facebook/Terms.aspx"Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Wow - that was quick. I love a good promotion, but I love good IT and promotion tracking even better!