Non certified customer

I made a claim in February 2021, was told to take my car in for assessment which I did some time in March 2021. I forwarded the quote to them and since then, my claim has been with different people whom all of them till today, haven't helped me. Already the qoute has expired and my vehicle is not yet fixed.

I wonder how long does it take for a claim to be taken care of. It's been 4 months now since I did the claim but till today I'm not yet helped. Any advice on how to deal with the situation please?