So a bit of an update, I logged onto partlink24 to see what part number it had for my lights and it came up with a different part number. the part number on partlink24 was 8V0941773C and 8V0941772C for the otherwise, the parts that I have fitted is 8V0941733D and 8V0941734D. on the original bit of the part number that I used, I couldn't quite work out the last 2 numbers. all the other modules are correct just the lights are different. Do you think this could be my issue and is there a way to retrofit the correct ballast to resolve this?