The day after we leased an SUV from the local Infinity dealer they started sending us trade-in offer emails each week. This went on for the entire term of the lease. We returned the car 3 years ago and the emails still keep coming...

Trade-in offers saying they have a buyer for a car we don't have.
Service Discounts that show the current carfax milage of the car (we don't own anymore).

I've clicked 'unsubscribe' on every email and they keep spamming. I called last year to see if they could take me off the list.. they apologized and said it was taken care of. The next week they signed me up for 'CARFAX for Life' on a car i haven't owned for 3 years. Now I get CarFax reports asking for reviews of service every time the car gets an oil change (it's currently in Florida).