Haven't been given what I was supposed to be given

I've upgraded the contract in December which got me a new phone but I also supposed to receive a free gift due to the promotion that they were having.<br> <br> The free gifts were a Skullcandy Headphone, Powerbank and a D-Link Speaker. My choice was the headphones. When I wanted it they said they didn't have and that I should call back. <br> <br> When I did call, they said they had no stock and that they would call me when they have. I had called around 5 times with not one call back. This was very annoying. <br> <br> Then yesterday when I went to Gateway and I told them that I came for my free gift they told me that they no longer giving the Skullcandy Headphones. <br> <br> At this point I was very annoyed because I was told that I would get that Headphone and I had phoned numerous times with the hopes of finally getting what I supposed to, but instead I get a XQISIT Headphone that I didn't want. <br> <br> I am really disappointment with what has occurred. How could you be out of stock from December? Or was this just another sales gimmick?