[murphyv310]

Hi.
Chris is spot on. Do not delay in calling your insurance company, you don't need documents just their number, you and your policy can be found on the system by name and postcode. Delaying can be a big mistake.
On another note, it's highly likely the car will be written off, a bumper will write off a 75, any mechanical damage then its a forgone conclusion, don't allow the car to be removed by them, it's your property remember, get estimates yourself and keep the salvage if they write it off, in many instances the cars can be repaired.
Good luck.