Jb94

Took my car to a garage they diagnosed trimming chain they replaced that aswell as cam sensor, cam sprocket and v belt, they have us car back didn't even drive 5 miles eml back on sent back to them they never said what issue was have us car back same thing drove 5 miles and the car just wouldn't go it kept pulling back they have now run another diagnostic and said code p2015 is coming up and is an issue with pipework and solenoid / cannister they are saying this is why the timing chain went and that they are not liable for this issue surely this would of come up.when they first diagnosed the timing chain? Any help much appreciated, picture of what their diagnostic was after the timing chain