unfair rejection of a claim

On the 28.03.2018 I lost my mother and after going through he r documents we realised that she had a policy with I called and informed I’m not sure of the 1st time I called them, I was then I communication and submitted a claim around April 2017 and I was to get documents for the claim I sent emails to query abut but none came back to until I laid a complaint with hello peter and I was assisted I was advised of the 3months submission of claims I sent endless email to the companies with my query that we are struggling in getting the hospital to fill the forms no one responded to any on the emails I sent to 1life and I decided to call them I spoke to a lady that told me that in the meantime we can submit whatever forms that have been and those were (application for payment of death claim form) this form was going to be filled by the 3 beneficiaries which is me and my 2 siblings to my surprise while I’m in a process of getting them to get the forms and fill and return to me so I can send them back with the required documents, I get a letter that my claim has been rejected due to outstanding documents that has requested from time and again my problem is that I was the one making contact with not one have they tried to contact me with regards this and even when I sent emails to query this no one responded and I had to call and complain on hello peter to get the attention of the company now I need answers. Its was only in march that I got the answer that each of us needs to fill in the forms I had queried this in an email on the 20th June 2017 and I sent an email in Jan informing 1life that we are still waiting for the hospital. Under the beneficiaries I’m the only one with resources in terms of communication my 2 other siblings are unemployed the one has been in eastern until recently she has returned because has found employment in CPT so before this was rejected did 1life take time to investigate and find why the claim/ documents are submitted have you even checked your email to see that I have been trying to communicate with you guys.