Hi everyone, good news.
After the garage removed the shield and got under the engine it was found that the gearbox transmission fluid top up plug was where the leak was coming from. (5* to National Tyres for correctly identifying

)
PTFE applied to the plug - the level of oil in the gearbox was ok.
Refitted and now monitoring again.
Now all I need to do is figure out what 18" tyres to put on as this is where i had my monies earmarked for