This may be targeted.... I got an email no enrollment necessary
You'll earn an additional 500 bonus miles for 3 contactless purchases from 06/27/2019 through 07/31/2019 using your product during checkout. Each contactless purchase must be a minimum of $1.75. Purchases are when you, or an authorized user, use a card to make purchases of products and services, minus returns or refunds. Please allow 6 to 8 weeks after the qualifying purchase(s) post(s) to your account for bonus miles to post to your credit card account. To qualify, your account must be open and not in default at the time of fulfillment. If you change your credit card product during the promotional period you will forfeit this offer. This offer is nontransferable. We may terminate this offer at any time without notice.
