Dragging with a claim

I was healthy all my years and suddenly on the 4th of September I got very ill. On the 11th of September I was submitted to hospital where they had to stabilize me. I was discharged on the 3rd of October I was sent home so that the infection can drain through the stoma bag. Due to my condition I am unable to fulfill my current duties, walking for a few minutes leaves me in tremendous pain. Because I am self employed I have the income protector with Hollard. On or about the 25th of October I have processed a claim with no response at last they send me some forms to be completed by my doctor and myself. I did that speedily due to the Hollard payout that had to be paid out on the 4th of November according to the policy documents. I requested feedback because I get no response Finally when I got a response there was just more forms to be completed(which I did) and Hollard said they are doing further investigation with previous doctors because the policy is under 3 years just to find out today that Hollard only phoned our previous doctor today so from the 20th of November when they requested the other forms to be completed they have done nothing from their side to do the investigation until today that I have said that I am going to report them. As a self employed business man I am depended on a company such as Hollard. This has just brought me further frustrations that is unnecessary as my concentration should be on getting healthy. I have been going back and forth for too long now. You need to solve this claim for me.