About 6 weeks ago I replaced all the pads and discs on my Astra for EBC vented discs and EBC black stuff pads. I tried to fit them myself, but found the discs were rusted on, so had to take the car to a garage to get them changed. They swapped all the discs and pads for me and only charged me £40 which I was really happy with. The guy told me to go easy on the brakes for the first 150 to 250 miles till they bedded in a bit. After doing about 200 miles on them I did push the car a bit too hard and found the brakes started smoking. So I stopped the car and gave them 10 mins to cool off. However now my brakes squeel like crazy whenever I brake. My Dad told me it was dust trapped between the pads and the discs.
What I wanna know is, if my Dad is correct or not, and how to rectify the problem.