I have read a couple of cases were the mk6 door lock has failed or stuck.
For future reference once the cars out of warrenty and rather pay ~£400 to get it fixed as you cannot get the door panel off with the door shut here is how to get the door open.
Just read this on another forum. So have not tried it yet as my labtops dead
If you have vagcom/VCDS go into central locking and perform an output crash test this will pop the doors regardless of a fault.