The way to fold it is to push up the buttons on the handle bar (also used to adjust the bar) and then kick the kick plate on the bottom. If that's still not working. This video should help you. She folds the system and explains how to do it at 5:00. You can also see how everything else works as well with converting from the bassinet to the stroller for toddler. Hope that helps!
1 try ebay ususlly good for spares 2 contct silvercross direct at https://www.silvercross.co.uk/contact-us/spare-parts/ their phone number is also on the page
I just requested and received the same from Silver Cross' having contacted them through their website. It wasn't listed in their manual section as it's no longer sold.
It won't let me attach it here though!
Do you know how to attach the Ventura Car Seat to the XT? It tells you in the manual how to remove the pram seat in order to 'attach the car seat' but stops at that! We have attachments marked L and R for the car seat and assume it rests on the grab bar facing you as if you were pushing the XT but cannot see where else it would attach as there is no room for the attachments to fit on to the side bars....