Bad Service

I have purchased a brand new vehicle half way through 2020, I received two spare keys and only recently discovered that one of the keys do no work on the car and is different from the main key I use on the car but by looking at both the keys it looks identical, I went back to the dealership, the new vehicle sales manager advised me that it is up to me to check the keys are working, and they cannot do anything due to the time lapse, I would need to buy a new key he also added that he would help me if my approach was different however despite having to waste my time to go down to the dealership I had a false comfort of knowing I had a spare key, In essence the Sales Manager and Dealer principal insinuates I could have gotten the key from anywhere and I am making a false claim, The sales manager also advised he will not help me based on my approach expressing my dissatisfaction, I did not know the customer approach is looked at before this person decides to do his job or not. The sales manger also contacted the dealer principle in my presence and the dealer principal share the same sentiment that they would not help. I have asked for a letter stating this since it is not a matter of the cost of the key but in principal implying I am a *****ster. Not very comforting knowing someone out there has the actual spare key meant for my car. Toyota in General offer bad service. I would not buy another Toyota again.