Numerous glitches + non-descript coupons

The McDonalds app has some good things about it, and the offers are indeed pretty good...if they work. Unfortunately, in my experience the QR Codes seem to work roughly only half the time. Additionally, for a large percentage of their offers, they are very unclear about what items they actually cover. For example- I had an offer for $1 off a McCafe beverage with a photo that was CLEARLY a milkshake. Ordered a milkshake, went to use the offer and was told that a milkshake wasnt an included item. Was similarly confusing when they had offers for "large" and "specialty" chicken sandwiches. Would be an easy fix to just add a list of applicable items in the terms and conditions section.

HandsomeRob15 about McDonald's, v5.4.0