Reverse lights not working - Laguna Mk2

Evening everyone,



My MOT is due this week and im trying to get a few minor things sorted out. One thing is the reverse lights dont work.



Ive put new bulbs in, nothing.



Ive disconnected the switch on the gearbox, given it a wee clean still nothing



Think the switch itself is goosed? Ive not got a multimeter to check it unfortunately. Also is the switch a Renault dealer part only or can I pick it up at Euro or the like.



Thanks in advance



Kenny