You did take the whole headlamp out didn't you?

its all really simple to do mate. maybe to late to do it now but you should do it tomorrow.

take badge grill off then take out all 3 screws on each headlamp... pull headlamp out, dont be shy with it. change over all bumbs.... put headlamps back in, yet again dont be shy we giving them a bit of a shoving.

take 30min tops