Well I've finally done what I was far too lazy to do in the first place.
I jacked up the car, crawled under and cleaned the mess round the leak.
So it's deffo leaking around the sump plug - there is one!!! (As said absolutely fudging clueless).
But it's all a moot point anyway as I don't have a...
It appears to be slowly leaking out.
Obviously I have no idea what's going on, only the fact there's oil on the floor and it's coming from a specific area on the underside of the engine which i assume to be sump-y.
It would seem my garage didn't replace the sump plug after the service and MOT, naturally they're closed - not to worry thinks I, how hard can it be - 5 minute job max.
I just got a replacement, still didn't think anything of it, and am now back home accutely aware of the fact there's only 2...