Horrible service with lazy call centre consultants

What a bad service I received. I have requesting my refund from November 2022. I have sent all documents and I received automated email to confirm delivery but they say they don't have record of my email and off course they don't provide references as well. I removed a dependent on the policy but contribution was never adjusted. From October until now they are billing me for my deceased cousin of mine. I havr submitted all documents but my query is stilll not resolved. when I follow up today they say I was given the wrong quotation from the beginning what nonsense is that. Sanlam.sky is a ****..I want my refund. My policy is with sanlam sky group policy OP***7