Poor service in handling claim

I lodged my claim after being in an accident on the 19th of January. They went through their processes and the claim was approved at the beginning of February, no one called to tell me which panel beater the car is being taken to, I had to call them a number of times and they kept promising to call me back with information but nothing. After a week I called and was told that the car was at the panelbeaters but when I called the panelbeaters I was told that the car is not with them and they had recieved no confirmation from standard bank. I spoke to the team leader who promised to speak to the person handling the claim so they would communicate with panelbeaters and to keep me informed. What is disturbing is that I get calls from standard bank agents asking me if i know where the car is, a month after claiming my car is still not with the panelbeaters and there is clearly no communication between the insurer and the panelbeaters. I have 30days of car hire and thanks to the slow and ineffective service I am now near the end of the 30 days and the car is not even at the panelbeaters. I expect better from standard bank, since before this incident their service has been exemplary.