Engine Burning Oil problems of the 2009 Toyota Camry Hybrid

I have been noticing that my car has been burning excessive oil for over a year. When I have taken my car in for the regularly scheduled oil changes the service department (not Toyota) has not found a problem. Recently a friend found out on line that there is a Toyota warranty enhancement for this issue good for 10 years/150,000 miles. I called a local Toyota service department but I am outside of the warranty enhancement because I am over the 150,000 miles but I am within the years. My car is 8 years old with 154,000 miles. I told them that I have been having this issue for a year and my car had about 137,000 miles at the time I noticed it was an issue. The suggested I called the Toyota motor company, I called them on 6/15/2017 but I did not get any satisfaction. They will not honor the warranty enhancement since I am over the miles. They say this is a warranty enhancement and not a recall. It should be a recall. The woman I spoke to made a comment that I do not take my vehicle to be serviced at the dealership. Today I looked at my records. I have taken my car to Toyota to be service, recall issues and another warranty enhancement that I was not notified about. I told them today 7/12/2017 that I have taken it to Toyota service department numerous times but I was not informed of the excessive oil burning issue. She said that I would need to tell them I was having a problem first. She alleged that I was sent a letter but I never received a letter. I should have asked her why I was sent a letter but when I have asked Toyota if there were any recalls they did not tell me about the excessive oil burning issue. I am putting a quart of oil in my car per week (500 miles). This is very expensive. I am waiting to here back from a supervisor. There is a problem but Toyota is being sneaking and dishonest about the issue.

Excessive engine oil consumption. Have to add oil at 830 miles. Brought to the dealership numerous times for oil consumption test but was always told it passed the test. Received a warranty enhancement notification from Toyota but it's already expired. It was not expired when I brought my car to the dealership numerous times.

Excess oil consumption (3+ quarts at 2000 miles use). Ongoing issue. . . Auto technician indicated it was due to Toyota recommended oil viscosity too thin allowing rings on pistons to seize; thereby allowing excess oil to bypass and burn off.