cant really cvomplain if you wernt insured, you had no documents and they had no proof on no claism what you expect,and course you need the policy documents to prove you are insured on it, not going to let you have it back uninsured (or without proof) when theyve just taken the vehicle for that reason 
When i first got my golf (may) and they put it on temp, I sent my NCB proof before the temp ran out as the operator on the phone said to me that she would put it on as a permanent when they recieved them , they recived them but they still did not sort out the golf (Knowing that it was my only car).
I was pulled in September and I thought that me not having the docs was due to it getting lost in the post (know I should have phoned but only have a mob and it costs a fortune from the phonebox too 0845 number and you are on hold for upto 35 mins).
The operator when I got the Golf insured 2nd time (properly) said that I would be able to get the police to phone them to confirm insurance.
All I would have asked for was a courtasy call or letter about the no claims whithin a short period of me taking out the insurance or for them to tell me when I phoned to change my adress (april). They can change adress without ncb proof but not car?

?. And also a letter or call saying that they had recieved my proof and that they were not updating my car from temp to perm.
Its not the police I am upset with cracking job (exept may - september and long journeys to wales and sunderland past cop cars and they didnt spot this) they even give me a lift home and were telling me tales of police chases at 160mph up M6 after an evo. Its the insurance they claim no liability after saying that they would sort my insurance out an didnt and said that they would check the tapes to confirm this and have never got back to me.
TSB + Bad customer service and one hand that does not know what the other is doing.