Hi stuartn01, sorry to hear of your EPB failure, firstly I've never heard of calibrating the brakes!!! to my knowledge if a new EPB unit is fitted it has to be programmed to the car but as far as replacing disc's & pads are concerned its just basic stuff which I've personally done, the only thing I can think of is the mechanic who replaced your disc's & pads applied the EPB first before pressing the footbrake first to bed the pads on the disc's & this has caused an issue with the EPB unit or your really unlucky & its just failed by coincidence!!
56reg Focus c-max 2.0 tdci ghia
Tango metallic sony 6 disc player front & rear parking sensors,privacy glass,climate control