Hello and welcome! My name is XXXXX XXXXX I will try my level best to help with your situation or get you to someone who can.
I hate to say it, but this would depend entirely on whether the contract
you signed for the protection package had a cancellation clause or not. In my experience, once the buyer takes delivery of the vehicle, it is a done deal and there is no cancellation available.
So you would need to carefully look over the package contract to see if they had any type of cancellation clause.
If the salesman stated that they would provide sealer at every service, but it doesn't state so in the written contract, then to be honest, you would have a hard time holding them to that because the written contract controls what services they provide under the agreement.
With that said, if they refuse to refund the package, you could tell them that you will file a complaint with the BBB
as well as with the IL Attorney General
's Consumer Protection
Division for unfair trade practices. Car dealers hate to have to answer those type of complaints so that can put pressure on them to allow you out of the contract even if they legally wouldn't be obligated to do so.