Everything possible done poorly

I has an accident with my car en-route to my holiday destination in December. From the first minute my claim was handled poorly or not at all. Waiting almost a full day for the tow to be approved, then taking weeks to asses the claim, then approving it, then once there is more damage than initially thought, they come up with some nice excuses in order not to pay. Then they cancel my rental even though my car is still in PE and can only be brought back on the 5th of March as they need to save money to get the cheapest option only available them. Then they remove my vehicle from the policy as it is written off....something they told me 1 day earlier would not happen as they don't agree with Honda on their assessment on the damage. I can go on for weeks regarding the bad service, but I am unable to find one thing that was done correctly....or even close to correct. I am lost for words and less a car, no idea how to get them to do the right thing here!!