Turn around time on claim

I have a life policy with Liberty. I experienced a mild heart attack in November last year which was confirmed by the cardiologist and his reports. I submitted a claim in February this year. Liberty asked me for so many documents which all was submitted. They even asked for all blood test results from. 2012 to 2016 including doctors reports during this time Its obvious that they are looking at every avenue not to pay out the claim. When you provide the documents they require they will come back and request another when you submit that one they will come back and ask for another. In this process they only called me twice however if you miss a premium they will message you or email you daily. Tells me that they only care about your money and not you as a person. Whenever you call them and enquire they say that the claim is with the chief medical officer. It's now been 5 months and still no outcome.