Lo & behold, when the lever under the dash is pulled, sweet FA happens to the bonnet release. Its not unclipped as it was working well a little while ago, so I'm assuming its seized.
I know on a MK1 its possible to fiddle around in the grill & get the cable to release. Not so sure on my S2, so if anybody has a get around, I'd appretiate it, PDQ.
I'd hasten to add, please send me a PM as I dont want this info to be on the Forum for all to see.