Discovery Mistreatment of Pensioners

I have been a client if Discovery for more than 30 yrs. Today I found out at the gym that my vitality has been cancelled no communication and no response from Discovery.

I spend over an hour trying to get hold of someone to assist me and nobody could. Discovery stipulates that my medical cover is fine so I don't understand how can my vitality membership be cancelled! I'm a pensioner I cannot spend hours on the phone!