Front Driver Side Air Bag Inflator problems of the 2009 BMW 335

Takata recall. I received a recall notice stating that in the event of a crash a defect in the airbag could cause rupturing of the inflator resulting in serious injury or death. It is now more than 9 months since receipt of this notice. I have contacted BMW 3 times since receipt of the notice and they state there is still no indication of when they might be able to replace the defective airbag. I'm hoping you can assist with forcing BMW to get this safety replacement completed.