Ann:
Make sure the police check for any calls or texts sent at the time of the accident from the other party's mobile provider records. They can tend to miss things sometimes as they are only human and nowadays are under considerable pressure.
BTW, what make was the other car and was it also a write off?
Upsetting times for you but thankfully you are not seriously injured but injured you were. Serious enough IMO.
Hope it all works out satisfactorily for you. All the best.
Asker
PS: I have had 4 write-offs and amazingly none my fault.