A waitress was brutally beaten by two violent customers after they had a dispute over a $50 refund at a Mexican restaurant in Chicago.

Two angry customers allegedly came to the restaurant to complain about a meal they had ordered.

Despite supposedly having finished most of their meal, the customers wanted a refund.

And when the 23-year-old waitress refused the customers’ request, they reportedly erupted into a violent attack.

The two customers reportedly continued to beat the poor waitress for several minutes.

Since the incident, El Taco Azteca has announced that their injured employee is doing better.