Have you tried searching here first? There's plenty but it needs time, patience and a fish pole or long thin steel ruler. Then the cause of the original fault has to be found to stop it happening again. Sounds like the side flaps got crunched? Side flaps have to work correctly and open for the roof to function, otherwise it will crash into them and they will break. That's why the roof op. is locked out. The roof locks will now be open and the trunk locks closed becaue the operation aborted mid cycle. This can leave the roof parts in an unsafe situation to drive. Was that a genuine V.W dealer? I wouldn't expect a regular garage to know much.