A delivery app marketing campaign offering a "free lunch" — aka a $15 promo code valid for three hours — sent customers and restaurant workers alike into a spiral on Tuesday as thousands of orders ...

Grubhub offered free lunch to everyone in New York City yesterday. What could go wrong? Between 11 a.m. and 2 p.m., New Yorkers could use a Grubhub promo code to get a $15 discount on lunch. Naturally ...

Apparently, there is such a thing as a free lunch. Grubhub says all of New York City and the surrounding area will be given a free lunch up to $15 through their app on Tuesday, May 17. "72% of New ...

More than a handful of New Yorkers got the message Tuesday about GrubHub's free lunch promotion-- like, to the tune of 6,000 orders a minute -- but one critical group says it was left out of the loop.