Default [Q] lock screen doesn't change after updating kitkat 4.4

i bought moto g pay and go from o2 network in the uk. i watched some video on youtube and saw that moto g with 4.4 kitkat have a quick camera access button on the right bottom in the lock screen. Funny thing is that mine doesn't show that button althought it already update to 4.4 kitkat ( about phone section shows that). any ideals, please ?