I am looking for advice as to whether I should take my previous insurance company to small claims court....

In December last year I had my mum's car taken off of me, impounded and, subsequently, crushed as I was found to be driving without insurance. Now, a couple of months prior to this incident, 03.10.12 eCar had cancelled the policy due to not showing enough proof of "No Claims Discount", which is what the police informed me at the side of the road. However, my mother had rectified this issue and eCar had sent a certificate of motor insurance after what they deemed a "mid-term adjustment" which stated that she (and I as named driver) were insured as of 05.10.12. However, not only was this not logged on the motor insurance database, when, after weeks of calling eCar's premium rate numbers to no avail, I was finally informed by a manager at eCar that the certificate I had in front of me, according to them, did not exist and the insurance had been cancelled on 03.10.12.

I have a letter that disputes their claim and an email confirmation also.

I am looking to sue for at least £10,000 as the car was my mother's mobility car, it was seized a two weeks before Christmas and crushed on Boxing Day when I was visiting a friend in London and could not return to my mother for the festive period. Furthermore, due to the stress of the entire incident I have since lost my job and am signed on sick.

Any advice will be much appreciated.