horrible customer service

On the 26/04/24 I received a letter of rejection from the insurer, this being the Third rejection I felt I needed clarity. I sent an email request on the 30th of April 2024. I did not receive feedback. I then called on the 8th of May and after the calls keeping failing to reach the claims after being transferred insisted on a name of the person that eventually answered. She said she is Kristy and she attempted to put the call through to the assessor Michael, since Michael was not available, she offered to take a message for him. Today is the 13th and still there is no call back. Dotsure telephone lines are the worst