Can anyone recommend a good source for rear hatch plastic trim clips. I have acquired some from my local dealer but only Two came in the pack. I'm sure there should be more than this ?

 

https://www.aliexpress.com/item/33023879272.html

 

Any good?

Have a look at these https://www.vehicleclips.co.uk/search-by-model/skoda  if it's not listed under the Skoda tab try one of the other VAG definitely more listed under the VW tab 

Yes. Heaps of sources genuine and non genuine. Have a look at fablogix on ebay. Other vendors are available.