Because Halfords website is wrong for facelift models:
Dipped Beam H7 (499)
Full/High Beam H7 (499)
Front Fog Lamp H11
Side/Parking Lamp W5W (501)
Stop/Tail Lamp P21/5W (380)
Rear Fog Lamp P21W (382)
Reversing Lamp P21W (382)
Front Indicator PY21W (581) (amber tinted)
Rear Indicator PY21W (581) (amber tinted)
Number Plate Lamp W5W (501)