Air Bag Not Deploy problems of the 2008 Hyundai Tucson

Airbag light on. Dealership where purchased, Hyundai inland empire, loma linda, CA, diagnosed and determined a wire was severed in loom attached to passenger seatbelt that connects to assembly under vehicle (photos available). This part has never been tampered and unaware that part existed until mechanic checked and only dealership where vehicle has been serviced. I asked for an exception to warranty as this is not a moving part. There is no replacement part and the whole assembly has to be replaced for thousands of dollars. I do not have that kind of money to fix a safety issue as part must be defective if wire snapped. No longer under 60,000 mile warranty so Hyundai will not take responsibility and denied paying for this. Now my airbags will not deploy. They have advised the loom where wire snapped must be remanufactured in korea. I cannot believe that is the case when these vehicles are still being made. I need help.