The few times I've had to deal with the group that cancels pending installs, it was a bit of a pain. First person had me on hold for 15 minutes and eventually came back and hung up. Second person put me on hold for 15 minutes but did come back and cancel the order. Just let them know it's not a pricing issue and that you just can not get the service right now. That way they're not trying to "save" your ordere.
You won't have any issues trying to sign back up when you're settled into your new house.
So funny, that is exactly what happened to me tonight. I chose the option to cancel, and when it rang through to the guy he answered in this big happy voice about congrats on your new DirecTV choice/install, bla bla bla...and then all shocked when I said I was actually calling to cancel. Such a bad actor. Then he did put me on hold for like 10 mins, I was like are you effin' serious. Trying to hope I just hang up and don't cancel? Whatever, so I started saying, "hello" to the dead air and he came back in...nice try.
I did explain it wasn't pricing or companies, I was just in a spot where I didn't think it was a good time to install and I'd be back soon. He was cool after that and did the cancel with no more hassle, but jeez...
Anyway, when I do get to the new place, DirecTV will be getting my call again.