Absolutely No Service! I am being ignored! Claim number ***

I sent through a vehicle insurance claim in October 2022, the process dragged with various delays and I finally received a rejection letter from Joe Masilela on the 19th December 2022. On the 11th of January I sent through an objection, on the 25th January 2023 I received an email from Mpho Molefe advising that the claim has been reopened for further review. Joe Masilela arranged for the Specialist to meet up with me on the 1st February, I took time off work and waited for them , my wife contacted them and finally they asked to reschedule as the Specialist was not "aware" of this meeting. We rescheduled to the following day, I asked the Specialist how long will his process take and he advised that by the following week he would have provided feedback already. The last communication I have with Joe was on the 3rd February when he asked some questions on email. 13 February I followed up with him, no response, on the 3rd March I followed up with him again no response. 20 February I followed up with Mpho, no response, followed up again on the 3rd March and received a response that feedback will be provided in due course. 24 March I followed up with Mpho, no response. What must I then do? as the client I am going up and down following up with people who just read your email and do not respond, its like hitting a brick wall. This process has been stressful and I would like to close on this, insurance is there to make things easy and take the burden off your shoulders not add to what is already on your shoulders. OLD MUTUAL do better, I am so disappointed, where can I escalate this.