Old Mutual bad service

My family has been doing business with Old Mutual since I was a child of 5 which is a good 40 years now. My late Mother had Life Insurance with Old Mutual and on taking out the policy it was said that should anything ever happen to her it would pay out to the nominated beneficiary with in 48 hours. Well my Mother passed away on the 3rd of September 2018 and I reported it immediately to the consultant that assisted us with the policy. I was told to go to the nearest Old Mutual branch which I did and after submitting all the documentation was told it would take 10 working days for payout and it is stated so on the document given to me. After two weeks I enquired without positive results. I waited and again enquired and was told that Old Mutual now requested documents from the family Dr. After NO feedback I called only to hear that the document's are finalised but still at the Dr. Old Mutual would not fetch them and the Dr would not send them so I got in my car and fetched them from the Dr and delivered them to Old Mutual myself. These we're then submitted and was told it would take about 7 working days then it would be finalised. Like I said my Mother passed away on the 3rd of September 2018 it is now 3rd December 2018, 3 months later and still nothing. I will understand if my Mother was ******ed or committed suicide that it would be prolonged for investigation but that is not the case. She died of natural causes (heart attack) in the bath where my daughter discovered her granny, a haunting picture for my daughter. I would really like to get this finalised and behind me putting my Mother's unfinished business to rest and moving on. This type of service is very disappointing and rather shocking from a company that is in existance for so long. To top it all Old Mutual places adverts in the local newspaper looking for Personal Financial Providers as employee's. Well after this type of service I would not recommend the company to anybody and make sure I get heard, instead support your personal bank and make use of their life insurance packages. This is shocking to say the least and I will approach the Ombudsman. Please can you help ?