Feel for you mate..i had the same problem on Xmas Eve. Ran into the back of someone who brake all of a sudden when the lights has gone green. And his rear windscreen was heavily tinted and it's a 4X4. Went into his f£$king towbar. My front bumper is damaged and it's a new NISMO N1 bumper..only had it on for 3 weeks.
There's a big hole near where the number plate is..took it round to the bodyshop..fingers cross..hopefully they will be able to mend the hole in the fibreglass bumper.