Grubhub is offering a FREE $20 credit for use on your next order when you sign up for AMC+ free trial for a limited time. There is no mention of the credit on the signup page and it was sent in a marketing email as a target promo but many readers have reported that it is working despite not receiving the email. I signed up myself and got the code 2 days later. Your Grubhub and AMC+ email addresses must match. The AMC+ free trial is good for 7 days. Please remember to cancel your membership before the 7th day to avoid being charged if you don’t wish to continue with the streaming service. Offer ends October 5, 2021.