Front Driver Side Air Bag Inflator problems of the 2005 BMW 325

In September 2014, I received an important safety recall from BMW USA. [recall campaign no. 14v-428: front passenger air bag]. According to the notice, the air bag supplier advised BMW that in the event of a crash necessitating deployment of the front passenger air bag, excessive internal pressure could cause rupturing of the air bag inflator, resulting in metal fragments striking and potentially seriously injuring the front passenger or other passengers. Unbelievably, BMW stated it did not have the parts to fix it. However, I would be notified "as soon as parts become available. " after hearing nothing from BMW, in February 2015 I contacted my dealer, san diego BMW, who said I needed to be on a list so they could call when parts became available. I gave the information and again waited. It is now April 24, 2015. I have heard nothing more from BMW and san diego BMW. I wrote to BMW at the email address provided last month and of course, got no response. This is a safety issue that should not involve 8 months of waiting. Recently, my mother in law died from just this situation [not involved in this recall]. I find it hard to believe that a car company can be required to recall a car for a safety item and then do nothing about it. Please advise me as to what can be done to get this fixed in a timely manner. Thank you.