I had a problem once but it turned out to be the restaurant's fault (they accepted my pick-up order, marked it as picked up and closed for the day before I got my food - all of this in the span of ~10 mins). I submitted a complaint via the app and Uber refunded me no questions asked. </shrug>
I read </shrug> as a self closing tag <shrug /> as human language is not necessarily valid XML. It is amazing how we "autocorrect" things as we read that we have to consciously stop and think what we did.