RTA non fault case has taken nearly 3 years in 201...

RTA non fault case has taken nearly 3 years in 2017. Called Minster law to discuss my mother's case My mother passed away 8 months ago and I called to advise this and was told to forward the death certificate which I did. Ever since I called number of times but the team still reviewing the case. Everytime there is a new person on the phone therefore you spend nearly half a hour to explain and at the only thing they say that they will come back to me by telephone call or via email but you receive nothing even after 2 weeks to a month. Then I call again the same cycle repeats.
I had put in Google review month ago and the next day I had a call from Martin Armitage from Claims department, two weeks later I called and was told that he is reviewing the case and will call back and guess what no calls received from anyone from the claims department.
When asked to speak to the manager they always in the meeting or out of office team leaders if any are not bothered at all.
Also, from the other side of the phone I don't know if I am talking to the manager or team leader. Right now I am on the phone to the department for last 20mins but I still have had any luck to speak with manager or team leaders on hold,the lady who is doing her best to put me thru the manager or team.
In conversation with Richard Hagger says he is team leader. Now he is asking me if I was the executors and this the 1st time I am hearing. When I called Martin he never mentioned such things and was happy to discuss the issue.
Big lie was told by Richard Hagger that they had responded to my calls and emails when I asked the copy he said he cannot do that and he will terminate the call. I only made the telephone calls to them never emailed regarding my mothers case, so why lie about it.
Rude, unprofessional and under trained staff and big big liers.
They have closed my mothers case with even informing us.
The company is fraud and filled with liars and unprofessional staff right from the top to and an agent.