brake problems

i have a clio 200 and the driverside rear break calliper is jammed on, i have had it off the car to try and free it up but its seized solid to the point i broke a G clamp.
the car is booked into to renault to have a look at it as its under warranty still with it only been 2 years old.

in the mean time has anybody else had this/a similar problem?

if so what did yous do?

thanks
 
Its a common enough issue. The brakes (front and rear) on the 197/200 need regular striping and cleaning to keep then in working order. If your rears are like that I'd check the fronts too, here your basically checking that the pins that secure the pads in place are not seized in the calipers, which I very very common. Just be sure to have a spare set of pins before you start this (of which you have several options).