right, luck was on my side as i could undo the lock pins either side as my bumper was off. so managed to release the boot/tail gate
another crap design from renault...
Whilst I'm not defending Renault in all cases, they do usually have an emergency release but you have to know how to access it - it is meant for mechanics more than owners. I have opened many stuck locks but before I can say about your case I would need to know exactly which model you have - each model tends to be different.
... needed contacts cleaning as the was furred up.
Something that should have been seen and done a while ago by the sound of it. Good servicing involves checking all these sorts of things to prevent the type of incident you have just had. That's the trouble with people servicing these days - they do the obvious things like oil and filter changes, replacing spark plugs, etc. but miss all the important little things because they don't think about what is constantly in use and needs attention. Just one example - How many people check cables for fraying on a service? Yet if a cable breaks it often causes trouble.
Roy