WHAT THE HELL AM I SUPPOSED TO DO NOW????

I SUBMITTED A CLAIM ON THE 4TH OF APRIL 2016, TO DATE I HAVE NOT RECEIVED A RESPONSE. I GOT A COURTESY CAR ON THE 7TH AND AM DUE TO RETURN THE CAR ON THE 30TH. WHAT AM I SUPPOSED TO BE USING THEN SINCE THE INSURANCE WILL NOT GET BACK TO ME AND MY CAR WAS WRITTEN OFF. I HAVE RECENTLY DONE A KNEE REPLACEMENT SURGERY AND CANNOT TRAVEL BY PUBLIC TRANSPORT. I NEED A RESPONSE URGENTLY!!!!