Very Poor Service

I have previously lodged a complaint on the 05 December 2020 and all that was done by the person dealing with complaint was to call and let my phone ring twice and end the call. Why no leave a voicemail message with contact no, or they very least leave a message or send an sms with a time when they will call next. Its obvious the person just wanted to close the call and not actually deal with the issue. See complaint below and call me on: ***. I have tried to cancel the Talk 500 service since August 2020 on my account via your useless call center to no avail. Every time I call I am told it will be canceled, but stays active and have to pay for it. Please cancel with Immediate effect and refund me ASAP. Account no: I***-5.