Cancellation and Surrender of Policies NIGHTMARE

My experience of incompetence and blatant disregard for customer service at Liberty Life is alarming. I feel disrespected and cheated in many ways since I have held policies with Liberty for 15 years. I have recently moved abroad. My process of canceling and surrendering my policies (x2) at Liberty Life started in JUNE 2019 in consultation with my financial advisor - completing the necessary forms to action my requests. Liberty Life has actioned an UNAUTHORISED debit order on my account (for my Medical Lifestyle Plus policy that was surrendered and paid out). Liberty Life has also now sent me a letter to tell me that I have TWO outstanding premiums due on policies that I have canceled (and filled in the appropriate forms for and received confirmation that they are in fact canceled). My exacerbation with customer service has made this even more traumatic. Promises are made that are NOT delivered on. Can a company be trusted with important insurance issues if they can't handle simple processes of cancelling policies and getting debit order processes correct??