new beetle 2005

I have been to the dealership at least fore times with the airbag light keeps comming on, they keep turning it off and a week or so it comes back on now there are trying to blame it on me saying im putting stuff under the saat and that is making it go of. I told them i dont put any thing under the saet please help. thank you

Keep trying and be nice and friendly. Do you have a VW ASSIST number in the USA?...if so ring that and say the dealer is not assisting you.
Be assertive....like say "I need this problem is not fixed and if I have an accident and the airbag fails due to warranty abuse then you will be sued"