DSL Availability

I moved into a new townhouse eight streets from my old house where I had DSL and have had no complaints. Now when I check availability for my new address, DSL is not available. The kicker is that the unit right next to me, they are D and I am C has availability. I chatted with a Verizon Representative on-line who told me that it was true that the unit next door has availability but I do not? The reasoning given was port availability? So now I have no internet connection and from what the representative was saying that I that it will be  "extended" unavailability for my address. I told the representative I guess I will have to look for internet access with someone else and I got no response. They don't care.