Worst customer service. I tried to call and book a...

Worst customer service. I tried to call and book a room. I was given an offer to stay an extra two nights for free, so I booked the room. I received my confirmation email and was quite pleased. Then, about 15 minutes later, I received a second confirmation charging me for the two extra nights without any explanation. I called customer service and their useless response was verbatim: "We do not have free nights. Sorry sir." No explanation of why they revoked the offer, just a worthless statement. The worst part was that when I told the agent that it was unacceptable after she repeated to me, "we do not have free nights," for the dozenth time without explanation, I asked to speak to a supervisor and she disconnected the call. I tried to call back and received a different agent who apologized briefly and then said they'd get a supervisor. The call was dropped after I waited 5 minutes on hold. I was tired, irritated, and trying to handle this at work. So, I submit an online ticket for assistance through the website and they didn't respond at all. So, 3 days later, I sent in another and still no response. It has been about two weeks. Forget this place. I used to bring my business here and my company has hosted events here in the past. I will encourage every employee not to stay here during our companywide annual stay in the Dells.