Poor service from discovery health

I am on the Key care plan with Discovery. I would like to cancell this plan and move to the Flexicare plan. I have REPEATEDLY and on email requested that the Key care plan be cancelled and an application for the Flexicare plan be activated. I have tried with consultants ( Fayrouz Hendricks) receiving NO RESPONSE to my emails, REPEATEDLY IGNORING my emails. I have tried with telephonic consultants REPEATEDLY calling the call center and holding the line with no forward movement (3X Holding the line leading to no respose + 2 x dropped calls)

Discovery, you have terrible and useless consultants who are really unable to assist me and this is becoming increasingly frustrating. 1. I simply need to cancell the Key care plan 2. I would like to activate the Flexi care plan

Is there any person in Discovery who can assist....

At this stage i find Discovery staff who just dont want to cancell this key care plan as discovery is benefitting from me being on this plan rather than cancelling this policy so that i can transition to something more to my needs and requirements.