Since your account is listed by your phone number, call up and ask to set up as a new customer, and use your cell phone number, if you used your home number the fist time.When you give your address tell them a different one.......
If you gave 101 south 1st street, tell them 101 1/2 south 1st street. They'll sign you up.
If you go back the same retailer and sign up, if they did get the chargeback, at least you could use them again so they could come back out and hook you up, and have a really easy install, since everything is still there and they should just have to hook up and activate receivers. At least then they get some money back for you getting them charged-back to begin with.