UPDATE......
I have applied auto glym to the door seals....All fixed sorted!
The sunroof however......ggrrrrr!!! Bought Dow DC4 grease and applied it around the entire glass edge that meets the bodywork and on the seal itself on the actual body. No improvement at all. The noise don't sound like a rubber seal issue, that I would expect creaks or squeaks. This is like small stones chipping against the glass, but goes as soon as you put the sunroof on tilt. Even lubed the gap between the rear fixed glass panel but to no avail.
Got car booked in at a different dealer and guy at Skoda Glos was arrogant and un helpful. Rather sort myself but don't think I can.
I'm still sure its the glide that attached directly under the sunroof. The very font of it, which covers a screw head wobbles around, whereas the drivers side there is no movement, and the rear last 6 inches of this glide, has lot more movement than the drivers side. - Dealer told me, once the roof is down, that part can't make any noise - I'm not convinced.... As that area is where the sound comes from, and goes once it's on tilt.
If this isn't resolved, I will sadly have to get rid of it. Did an online valuation and still going for nearly 16k which would cover the PCP, or I wonder if the dealer would do a swap for one without the sunroof....