NHTSA Complaint #11590218 — 2009 SCION TC

My scion TC is using an extreme amount of oil to where I am putting 2-3 quarts in the motor per week. The extreme usage of oil can cause the engine to blow up due to lack of oil staying in the engine. My oil light will flash after couple days indicating low oil. A dangerous situation that can happen is the engine stop working while I'm driving on an interstate and possibly cause a serious accident or even an engine fire. There was a Toyota bulletin on this issue back in 2015. My car was bought in 2013. According to Toyota, they claimed they had sent notice to the address listed under this VIN. We received no such notice and even requested Toyota prove they sent it, but they would not. When I asked them about this case in regard to this issue, they have mentioned Toyota would no longer deal with this because it was past the deadline. How can I be denied for a service bulletin if I never received the notice.