Ignition Barrel sticking VW touran 2010 Auto

[Yo-ola]

Can anyone kindly give me some Advice please , last night got to the shops and I could not take they key out of the ignition it would not release or switch the engine off I could not turn it , however after a bit of jigery pokery I managed to switch it off without breaking the key

Now i Went my mechanic and when i got there he could not stop the car or take the key out but again after some jigery pokery managed to get it out and he care fully put some WD40 in the barrel and it seemed to workl !

Noiw when I got back home I could stop it and start it but when i wnet out in the evening I had to play around with the key in  (jigery pokery) before I could take the  out, Is this a common fault any advie would help here My mechanic says they will not get involved as one might need to chnage the barrel ,key etc and I might have to go to a main delaer /speacialist 

any advice will be help ful 

[Volkswagen Owners Club]

First thought is steering wheel angle not stopping the key or foot on the brake, gear selector in park (if automatic)