Issues with egift promotions

I was wondering if anyone else has had similar issues and how was this resolved? I purchased a Samsung 46 inch Smart TV with $200 egift promo on 09/13/13. I ordered it through a chat session and doubled checked with the agent, that it was a $200, plus the 5% back for advantage members (have the chat session log to verify this). I then received an email confirmation for the order, with the product description that the TV came with a $200 egift promotion that should arrived within 10-20 days. I checked my account for the next several days and everything seemed fine. I went to check my account today and to my surprise the order description had changed, stating that the egift promo was for $125. I looked online and that is the current price. However, that was not the promotion when I purchased the TV. I called and spoke to an agent and he told me that it was for $125 and there was nothing he could do for me. I couldn't believe it as I thought this was all pretty straight forward. Dell obviously made a mistake and now I am in the position of having to try to convince them that I was right. The agent finally stated that he would forward the issue to the sales department. I asked for the contact info for the sales department but he wouldn't give it to me. I hope I am not just getting the old runaround. Has this happened to anyone else? This is pretty plain cut breach of contract. I hope they get this resolved, but even if they did, it's still disappointing that a large company like Dell can't serve their customers better and I'm spending an afternoon trying to resolve this.