Disappointing service - FNB life claims dept.

I am experiencing the worst customer service with First National Bank's life claims department. They have gone radio silent after a submission of a claim submitted on 9th June, there is no communication regarding the status of the claim and their call centre agents promise someone will give a call back which does not happen. I escalated these challenges to their Head Office on 29 June and am yet to get any form of feedback on 1st July. This is such disappointing service to a loyal customer in dire need of assistance; from an institution's department that has sent an SMS celebrating a decade of kept promises! The irony