Unhappy/Disappointed Client

I have a funeral policy with Metropolitan which covers all my family members, my parents and my parents in law. Now my father passed away on the 31 of August 2023. I called my Advisor to notify her she sent me a claim form to fill and send back. On Monday I was told my claim has been submitted and I will get a call to confirm all my details. When they eventually called on Monday during the day and I was informed that the year on the death certificate does not match the one on their system therefore they will have to restructure the policy to see how much they will offer me I waited for the call because they said they will get back to me the same day to let me know of the outcome but they never did. On Tuesday I called my advisor to let her know she was also surprised to hear that, I asked her to make a follow up because I need that to go and pay the mortuary on Wednesday before 12. She informed me that that the head office is still busy with my case and I should relax she also informed them that I needed the funds ASAP. Wednesday passed without any call from Metropolitan. On Thursday morning on my way to the branch I got a call from them offering me R17589.00 from R30000.00 that I was suppose to get, they asked me if I accept the offer or not I declined it because I wanted to understand how did they get to that amount. Went to the branch they called their head office I was told my advisor said it was not her fault I am the one that gave her that date and that is the only amount they will offer me. At that time the mortuary was waiting for me to pay I had to accept whatever amount even though I was not happy. They promised I will get the funds after an hour after signing the acceptance letter because since Monday I told them I needed to pay the mortuary but I only received the funds late afternoon on Thursday I could not pay again on that day. My dad was born 18/12/1956 on their system the advisor captured 18/12/1959. When she came to my house to write this policy I gave her all the copies of the people I wanted to cover but now when they ask her she said I am the one that gave her the wrong information hence they decided that i will not get the whole cover amount because its my fault. If I had given information without any papers I would accept that I made a mistake but I gave copies of Id's and birth certificate to capture. So now I had to suffer the consequences of someone fault. I asked for the printout of my policy document only to find out again that my wife's, stepdaughter's, both my parents in law's surnames are incorrectly written only the extended surname is correct. I believe I should get all my cover amount because clearly this was not my fault because the are other errors besides this one that cost me R12 000.00. I am very disappointed and hurt.