Boom - unfortunately the car I bought not my erging

So no erging yesterday due to at best inebt car dealership - the story 

Bought the car on 19th May and within two days I noticed a knocking noise which got louder, on 21st May I took it into a Ford Dealership/Garage and they diagnosed an issue with the "bottom end" of the engine and said it was most likely a bottom bearing or bent con-rod. So I called Great Island Motors and talked to "Ray" who advised me he thought there could be issue with the con-rod/bearing or possibly the injectors (which I understand they had replaced) but after he'd said he’d spoken to a main ford dealer himself he understood that replacing the injectors might lead to it settling down, which it hadn't. Therefore Ray advised me that they would be getting a replacement engine for the car the next week and they would call me to advise me when they would be replacing it under the three months warranty. I was concerned about driving the car further (especially as I have my two year old daughter in it) but Ray had said to me that it is fine to drive away until you get the engine replaced.

This morning (25th May) on my commute driving 120kmph in the outside lane of the dual carriageway from Midleton to Cork I head a grind and then crunching noise, smoke came from the engine and I noted something fell to the road as I drove. I lost power but managed to get the car to the side of the road and called Great Island motors who said to me that if I got the car to them they would give me a loan of a car while they fixed it. So I called the AA who came out and called a tow truck with which I transported the car to their garage. On arriving at their garage I was then told they would give me my money back and that they would give me a lift into work. I explained I needed a car for my daily commute to work and I wanted the car fixed. They said they were not willing to loan me a car while they fixed the Mondeo and that it would take them a couple of months to sort it out. I took the refund in a cheque and left their premises with my contents of the car.