Well thanks to your steer "stalk switch actually passes through the hazards switch" Anders it has led me to the problem.
At some point in time a previous owner had fitted an after market central locking control (obviously cheaper than buying a renault key fob lol)
the control unit was squezzed into the roof hazard switch/button box, in time this had worn through one of the wires to the hazard switch, yes you got it, the one for the indicators
many thanks again for sharing your knowledge