When we walked in we asked the server right away, Diana, If they still applied a 20% discount for Wynn employees. She immediately replied, "Yes we do!" We were there celebrating a friends birthday and wouldn't have ordered anything off happy hour if this situation hadn't occurred... The service was okay, she came every so often to check on us and took our drink orders but seemed confused at some moments. I tried to clarify things for her but she did not take the initiative to repeat our order. We always have a good time at this location so didn't expect what would happen. At the end of the night the bill didn't add up. We approached Diana and asked her if she had applied the 20% discount and she exclaimed, oh shit! And ran to the kitchen to do some kind of investigating. She came back out a few minutes later with a post it that wrote MGM 640 and told us that they no longer had the Wynn code in the system. We showed her the wynn employee site that clearly stated PTs offered it and she said that she would try to contact management. I overheard her speaking to the bartender that there was no way to reopen the check or whatever. She said that she was just waiting for a text from the assistant manager. We waited for 30 mins. She then finally told us there was nothing she could do at the moment (BS because clearly she had some type of power if there was an MGM 20% she could have applied to us) she then told US!!! to call on Monday and ask for the GM KAYLA and tell her about the situation. She did not ask to take our information down or offer to contact us, whatsoever. Being in customer service I have never been so disappointed! Granted it is only $12-$14 being returned to us but it is the principal that matters and she did not for one moment show any type of sympathy for her mistake. I am only giving one star because I heard at least one "I apologize". I will not be returning to this location ever, even if it is only 5 mins away, I will gladly drive a few mins more just to feel appreciated.