I sent in my paperwork 5 months before I go on my ...

I sent in my paperwork 5 months before I go on my trip. I found out through the website that it was cancelled. No email no phone call just cancelled. When they told me in early August that the date I was asking for was still available they would not book it. I was told that I had to wait 30 days before I go on my trip. Now they are saying all of Nov was filled and no availability till after the 30th. One person even told me I should have told them to book it. I asked 3 times to do so they all said no that I had to wait. The manager was unhelpful and I usually do not get angry but they did not want help me with anything. This company does not do what they promise to do.