I was in an accident with someone insured with thi...

I was in an accident with someone insured with this company. The other person rear-ended my vehicle while I was at a yield sign. I spent about 1.5 hours and multiple calls to try to reach them the day of the accident. It took over a week to get authorization to have it repaired and to get a rental authorized. Got the rental and they declined to pay the bill stating I would pay and they would reimburse me. They did not, apparently, stay in contact with the rental company (Hertz) as I kept getting notices to return the car IMMEDIATELY due to the rental being expired. They do not volunteer any updates, other than a letter stating they would send a check to cover their own estimate (check never arrived). Hoping they don't expect me to cover the repair costs to get "reimbursed." The accident itself was less traumatic than dealing with the insurance and rental companies.