Hi Camoguy,
I'm extremely sorry for this experience, and was hoping you might be able to assist me in figuring out which staff member this is, so I can maybe retrain them in these areas.
Firstly, was it a Saturday, or a Sunday, that this took place?
Secondly, can you remember whether the person that helped you had blond hair, or dark hair?
Tier 3 is our regular pricing for groups of over 40 people, and isn't even a promotion, it's something we offer every day to any big group like that, so I'm surprised that an employee isn't aware of this product.