Well having read this all be it short thread, which I see as being short on any input from the garage concerned, other than waffle.
So taking into consideration past input in regard to other car related issue raise on this forum. I have to say I would still put my faith in what Nigel S has said
But all is well, as the OP appears to have gone into a dealership with a none problem, and they have manage to sell them a new car

Of course I could be totally wrong in my observation.
However it eminds me of a friend of mine, who many years ago like myself had his own business. I used to run cash bought, second hand load luggers. Whereas he took the, I'm running a successful business approach, and I want my customers and peeps down the Cash and Carry to be aware of the fact.
He used to regularly take his year old bought "new on the drip" Volvo estates into the dealers for a service, and come out with a new one. They would spin him a tale, that what with the cost of this and the cost of that, it would cost him X amount of pounds. Whereas if he agreed to extend his hire purchase plan by another year, and increased his monthly payments by another £20. He could drive out of the dealership with a brand new latest edition Volvo estate.
Eventually he came to me and said, the banks bouncing my cheques what should I do? I said do what I've been telling you to do for a couple of years now, cut your out goings, especially the expensive Volvo.
Next time he showed up around mine, he managed to ring the door bell without having to get out of his motor. It was a tiny Suzuki Van, which I immediately christened the "Tonka Toy"