TheRobinK

It took me a couple of tries before I got it. The translated English in the manuals can be a bit "iffy" in places...
 
Here is a link to a PDF version of the manual for a 2011/2012  (I think that's what a 62 plate is?).  The downloaded version is useful as you can search it in seconds and navigate by clicking the page numbers and references.
 
http://ws.skoda-auto.com/OwnersManualService/Data/en/Superb_3T/11-2012/Manual/Superb/B6_Superb_OwnersManual.pdf

Seeing as you are pretty sure there is a mic up there - do you have the service booklet that would have come with the car?
 
If you can get to it, the booklet should have a sticker/list of codes in the front. These are the codes for what was fitted at the factory.
 
If Bluetooth wasn't factory fitted, I believe you will see code 9W0 (without car phone preparation or installation).  I don't know how these codes change over time - but my Bluetooth 2014 car has code 9W8 (Car phone preparation). 
 
If you have a code that indicates phone preparation then it may be that the Bluetooth module failed and was removed - or is under the seat but faulty, If you see code 9W0 then the mic may be from an aftermarket install.
 
In any case, if you can get the codes from the service booklet then you can look them up here (useful link I found on a post here when I was researching Superbs):
  http://vag-codes.info/

I can adjust mine vertically - but it takes far more effort than doing a left to right adjustment. As you have found, it is quite stiff and I found it best to use both hands - but it does adjust.