Many thanks. Finally found the bit to pull. Embarrassed to find that it was even there. I can now put a suitcase in the boot.Hello and welcome
The will be a handle in the middle of the boot separator, you need to grasp it to open the catches on both sides then pull it towards you and down into the lower position.
It needs to seat securely in the lower position to close a micro switch that tells the car that there is now space for the roof to fold.