An inefficient, *********** organisation!

I have been paying home insurance to cover the structure of my property for more than 20 years with ABSA and decided to close my account on their asking for a R2 credit on the account??? I cannot believe that after asking 5 times via emails and having cancelled my insurance with them last year they keep sending me a renewal notification of R5k for the current year! Pathetic and what will it take to cancel??