vw polo window regulator

Hi, I have a 1996 VW Polo
My electric window regulator has just failed. It was the clips - and I have new ones, but the actual spacer bits on the regulator struts that the bolts fit into have also come adrift. They were just pressed on to the frame. Does anyone know what these parts are called and if they can be replaced? Can they be stuck back on? Is there an alternative?

Managed to answer my own question. VW supplies say the spacers are part of the whole regulator assembly and cannot be bought separately. Since the new regulator is £90 ish, and mine works fine, we've done some home engineering. Found some bolts with the same thread as the spacers, ground down the head a bit so it doesn't catch on the cable, ground down the broken spacer back and threaded the bolt through from the back, then used nuts at the front. Looks OK so far!

repair kits can now be bought on ebay.