3 for 2 - Really! Tell your staff

3 for 2 is advertised on Sorbet foot products, however at the till the discount is not given and the staff were adamant I was wrong. Not only is there a huge yellow board advising this but it's on the clicks website. On showing them the sign which I had to go and remove from the shelf then they want to "help" - I walked out as I don't have time for incompetence.