Brake failure

I have had this pram just over 5 months now and I am shock to the core at what happened today. As I wheeled the pram to the car and APPLIED the brake I proceeded to open the car to put baby into the car seat. After I loosend the car seat straps I noticed out the rear window I seen a pram going down the hill, I tired an my baby was gone, I ran after the pram but it was too late the pram crashed into the path and tumbled, baby still inside. I am shocked to the core my sons face is seriously bruised and this could have beem fatial had the pram not turned towards the path.and we are very luck to say the least. I will NEVER purchase another mamas and papas product EVER again and this product must be recalled. I took the pram to show my partner an he was so annoyed that a product like this could be on the marketno hydro safety in place for the breaks. Very bad design