The phrase "daylight robbery" means that someone is charging an outrageously high price for something or taking advantage of someone in an unfair and obvious way. Full definition
It's fans like you that let them get away with daylight robbery. (justarsenal.com)
If it was just plain daylight robbery on the back of a poor performance I couldn't celebrate with any enthusiasm. (justarsenal.com)
Real Madrid 2013 - 2018 ● The art of daylight robberies in the Champions League ● Biggest cheats in the past 5 years, but let's not say anything because they're not called Barcelona. (sbnation.com)