Has anyone had a problem with an open circuit in a spiral cable?

What is your question?

I discovered four days ago, the airbag light on my dash kept flashing and still continues to flash. I brought it to Sansone today and they ran a diagnostic and after giving them $141. for that evalaution, they stated that the spiral cable had an open circuit and it would cost me $583.15 to get the job done. Anyone hear of any recalls with this issue or is this price through the roof? Please help me.