Sorry pal been stuck in work unable to reply!So the bulb is swapped over, or have you got that to do yet?
Yeah tried twisting both ways but it won't engage, there is a slight 'slit' on the bulb holder that the dimples twists into but it doesnt look right on one side to me but not 100% sure tbh.Dimples on the bulb are offset aren't they?
Have you tried the other way?
The old bulb that was in won't go back in! So it rules that out, going to check the n/s holder as something ain't right, shouldn't have this much trouble putting a bulb in lolMust be that particular bulb