Yeah think mine was about £18 from Renault Preston, make sure you get the right one, as the 3s knob is different to 1 and maybe 2s
The reason I know is I bought a replacement for mine as writing had rubbed off, so I ripped off the old knob and the new knob was a diff fitting, luckily I could just replace the the blue face onto my old knob. Didn;t facy waiting in Renault parts dept for anothe 192 hours for them to get their act together.