Where can I get a cablecard and Tuning Adapter setup kit?

Recently got an additional TIVO, and called the local store in Macon,Georgia on 27 and 28 Aug to ask about getting a Cablecard and Tuning Adapter setup kit. Left a message both times, as the instructions said leave a message and they would call back. Well, no call back either time. Call the Cox 800 number, and they state that the equipment must be obtained from the local store, that it cannot be mailed. Getting run around in regards to getting the cablecard and TA kit I need. How can I obtain these short of filing a FCC complaint, which will be my next step.