elmerazz,
It is possible for TSC to send an interview notice to the dependent.
In our case, each of us received a separate interview notice letter (for the same date and time though). Infact, my interview notice letter was actually sent to an old address (while my wife's was sent to the new address .. no idea how they just updated one address and not the other) and I was lucky that the post office forwarded it to my new address.
Jaysee