I have simple cash business card and this offer shows up. Don't know if american express cards other than business cards will have it.
Get 10% back as a statement credit each time you use your enrolled Business Card on eligible purchases online at Dell.com/amex by 11/30/18. Limit $1500 in total statement credits.
Offer valid for purchases made on Dell.com/amex or by phone at 877-BUY-DELL only