1. Log into your Marriott Rewards account (if you don't have one, creating one takes two minutes).
2. Click the 50K offer somewhere at the bottom of the page. That takes you to a regular 50K offer page.
3. Stay on the same page, change the web address to "https://creditcards.chase.com/a1/marriottpremier/70p1ksh/", and hit enter.
4. Now you will see the 70K offer. Take a screenshot, hit "APPLY NOW", and your personal information will populate the application page - you are good to go!
The offer details: receive 70,000 Marriott Rewards points after spending $1,000 within 3 months. The $85 annual fee is waived for the first year.