One of the controllable parts of guest experience is the customer service. While staying there, I had a poor experience at the restaurant/rooftop dining area and bar. I had a friend join me for dinner, and we went for one drink. Ramon was my server ( greeting me, took my order, delivered my order and brought me my bill). It was 140mx and I gave Ramon 200mx and told him I didn't need change. He was a good server. When leaving towards elevator, I heard a woman screaming 'Miss!! Miss!! You didn't pay!!!' . She was running and yelling though restaurant at me. I was shocked and told her I had already paid Ramon. Her name tag said Josselin. I was upset and embarrassed and told her I didn't appreciate being called a thief. She said it was a mistake but did not apologize. I suggested she ask the server first before chasing a customer and yelling for all to hear, and left. I still had two days of a 5 day stay left, and told both front reception how upsetting it was, as well as the day manager the next morning. I was never followed up with at all. Customer service is completely within Mio's ability to impact, and I left disappointed.