Excellent service turned into my WORST!

I took my car (ford fiesta) in to Ford Fourways on Saturday morning (08/08/15). After having picked it up my fianc? noticed oil leaking and stopped at a service station to check what was wrong, they couldn't see anything wrong and eventually the oil stopped leaking. On my drive to work yesterday morning, after my car had been parked from Saturday throughout the weekend, the car just felt funny. I thought I was being paranoid, but I know my car and in the 5 years that I have had it, I have never had any issues. Driving from work back home a light came on on the dashboard. The car then started losing more power and stalling whenever I stopped at a robot. I stopped at a service station and asked the petrol attendant what that light means. He advised that it's the water. I opened my bonnet for him so he could check the water and to my horror, the cap was not closed and the water was boiling. I had to wait 40 minutes for the car to cool down as I wasn't going to risk driving it in that condition. , I cannot believe the level of negligence. I hold Ford responsible for any damage that should arise to my engine as a direct consequence of this.<br> Regards,<br> Tsholo Langa<br>