Ok so had one other job to do the d/s rear window would not roll down so stripper the door card etc back today and found reason is the plastic roller pin things that retain through a hole in the window onto the carrier are missing. does anyone know where i can obtain these from please ???

The bottom of the door, probably.

Any scrapyard mk1 Fabia, alternatively.

yeah i took the door carrier off but there is a void that is not obtainable so im assuming they are lurking down there somewhere nowhere to get new ones from ???

found some on ebay in case anybody is ever in need https://www.ebay.co.uk/itm/274075864405?

Good find, that'll be useful for more than just you I reckon. 

Those replacement rollers fit perfectly window all good over time the originals must have rattled out maybe.