Bad service

Hi I'v been involved in an accident after I cancelled my policy and thy told me that thy will continue covering me for the next coming 30days.then thy came to take my car to their place of reper it was October on the 21th.i'v been calling to find out what extly is going on thy keep on telling me same story that thy will follow up and get back to me up to today.its been almost 4days now thy telling me thy waiting for the management to approve my file while thy said only take two working days thy will be complete ,I'm tired now I'm paying the car every month end which I don't know where it is and what is going on please help.what extly is going on because no one is telling the truth..I need my car back it's almost a 2 months now