Taylor Swift tickets at gillette june 25th?

We rushed to order tickets back in December, thinking they would be sold out in no time on ticketmaster. We wanted to get 5 tickets together, but it was too hard, so we split it up 3 and 2. We got mezzanine section 236 tickets, which should be okay. But I went on to ticketmaster today and searched tickets just for the hell of it, 5 tickets together, and they came up, club level seating! Why is it that it is supposed to be a sold out show, but tickets are still available on ticketmaster, from the original source??? I am so annoyed that we couldnt have gotten these seats because they are all together and better seats. I am still happy that I have tickets, but it is just so annoying. Why is this???