I agree - you have to call them to get anything accomplished. I went from an all VD system (Genesis) to an all SR system and it was one of my better audio moves.
If you continue to get ignored by Cable Company, you can always call Elliott at SR and tell him your problem and see if he'll refer you to another SR dealer. He is also the best person to talk to about the particular cable mix for your system and budget. Unlike VD cables, the SRs are not a "1 size fits all" - different cables are designed for different applications. It is important to be aware of this going in.
If you continue to get ignored by Cable Company, you can always call Elliott at SR and tell him your problem and see if he'll refer you to another SR dealer. He is also the best person to talk to about the particular cable mix for your system and budget. Unlike VD cables, the SRs are not a "1 size fits all" - different cables are designed for different applications. It is important to be aware of this going in.