I come for dinner here several times but tonight t...

I come for dinner here several times but tonight turned out to be a terrible experience. I called first to book a reservation and mentioned that I would be using a groupon. The receptionist booked me for 7:15PM. So I completed the purchase of groupon. When I showed up and presented groupon, she said that I have to be with 2 other people as a condition before they will validate my groupon. I told her that the website did not say that when I made the purchase. I was curious and followed the link that Groupon sent me. Now it does mention about the condition. I argued that that when offer was presented, it never mentioned about the condition. The receptionist advised me to wait for the manager but 30 minutes had passed without anybody showing up. I decided to offer to pay in full and disregard groupon. And that's when I was sent to a reserved table.

To the Manager, if GroupOn purposely deceive your customers, stop using them!!!