Has anyone else had issues with Honda of Mahwah?

I purchased a vehicle from Honda of Mahwah on April 8th, 2026. This vehicle was listed as Honda True Certified and I was supposedly sold a CPO warranty. The dealership now is saying I have no such warranty and the car was only listed as certified because it was "eligible" to be certified. Honda Corporate says the dealer did initiate the certification on April 14th, 2026. I remember signing the proposal at my salesman's desk including the CPO pricing. They say now that they throw this paper out and transfer the terms to the purchase agreement. The purchase agreement says nothing about the car being a CPO. My mother and sister were with me throughout the negotiation and remember the salesperson talking all day about the car being Certified, and they both saw the proposal I signed with the itemized breakdown including the CPO. The CarFax lists the vehicle as Honda Certified on April 14th, and an Auto Trader listing includes the words "HondaTrue Certified" in the description of the vehicle provided by the seller. Has anyone else had similar issues with this dealer?