I'm sorry that you feel this way. Several things came to my mind when I read your originating post. One being, that you only need to tell your T that you need more support and feedback that T does understand and doesn't forget how much help you need from him/her. Ask for it, don't back down. It's common to need this feedback, but it's also common for the T to be focused on the issues brought for therapy and not the dynamics of therapy sometimes.
Now, for anyone thinking of not bothering to cancel when they aren't going, realize that this is called acting out. It isn't adult behavior, but behavior to solicit a desired response by the T (as you all stated accurately.) However, it would be best to go and voice your needs. If you act out you have to assume the T knows what's going on, and T will not know!
Plus, if you don't cancel, you can still have to pay or have your insurance company count it against your allotted number of visits, and you lose both ways there too. Then think of the time slot that you didn't use and someone else who may be in crisis that needed it didn't get to see their T...when all you had to do was be courteous and call ahead of time and cancel.
Communicate with your therapist. That's what they're there for...and to help you with that communicating in your entire life.