Months later, multiple queries and follow ups, 3rd hellopeter attempt and still no valued response, nevermind a resolution

I've been complaining here on hellopeter about bankmed before. The first time my problem was sorted within a day or so. A year later I get nowhere with bankmed accounts department and decided to write a review. I got a call the same day with promises that the matter will be investigated. After no further feedback / resolution after a week I respond to my review stating that Im still awaiting their resolution / feedback to me and as per normal I get a response that they will be in touch soon.... Awaiting another week I decided to call bankmed and ask to lay a formal complaint. Without being refered to complaints department a consultant asked me to give her an opportunity to resolve my problem. Well its been exactly 2 months and my patience is no longer.... Im being told that an account only payable for PMB conditions was not paid but they can see the treatment is PMB related and that the accounts must be updated. This cannot take months and in the interim Im being harassed by the service provider for payment and have now received threats of handing over the account to lawyers. I cannot understand how you cannot even get the basics right. PLEASE CAN SOMEONE FROM THE COMPLAINTS DEPARTMENT CONTACT ME AND SORT MY PROBLEM OUT!