Help my doors are locked!!!

Hi, a strange one this. My partner was recently locked inside the car after arriving at work. She had to climb out through the drivers window. All doors locked from inside and outside. Since then we have managed to open the driver door, tailgate and fuel flap. The car has been to Skoda dealer. No faults in the body module. Been back for a second time to try a new body module; not fixed. Booked in for a third visit next week for wiring checks. 
 

as a retired automotive engineer I thought I could at least open the right rear door by powering the lock motors through the b pillar connector which I can get to with the drivers door open. I have found the three wires to the door lock motors. I have tried putting power on them with some noises but door still locked

Has anyone come across this problem before or knows what power sequence I need to apply to the connection wires

ta