It sounds to me that the brakes are "Reversed". Check for this in game: Feet OFF pedals, look in the bottom left corner, does it say "Brakes"? Push BOTH pedals half way equally, does the word disappear? If so, in the axis section of controls, where you set the brakes up, there is a check box to "Reverse" the axis, put a tick in that box. If there is already a tick in that box, un-tick it. Then try again.
Yes the brakes were reversed, I have put a tick in the two boxes. All works properly now. didn't know it was so easy to resolve