This promotion is pretty simple. Schedule six or more recurring rent/mortgage payments, as far in the future as you like, and pay with a MasterCard. You’ll see the 1.75% fee automatically. Offer ends (i.e. you must finish setting up your recurring payments by this date) September 30, 2016 at 11:59 PM PST.
Tip: You will get errors if you try to schedule payments that go beyond your credit card expiration date. Double-check this if you get a message telling you to call in.
This is potentially useful for meeting minimum spend on a MasterCard and a moneymaker if you have the Citi AT&T Access More card, which has been confirmed to earn 3x TYP on Plastiq transactions.
Here’s a referral link for Plastiq (we both get a few bucks out of it, nothing serious).