Pathetic Service

I am super ****ED by the service delivery from bankmed, I have called the call centre to follow up on my membership cancellation process, I was told that bankmed was never not notified of my cancellation request after ive sent more than three cancellation forms together with the details and application form of my new medical aid to [Email Removed] now I cant have my new application processed due to bankmed failing to provide me with the cancelation confirmation, all I need is to withdraw from bankmed and my membership to be completely cancelled and get proof of cancellation, How difficult can that be????