Discovery *****

When I signed up for my Discovery Card 10 years ago I opted for the insurance cover on my credit card like I have done with other banks as well as for my vehicle finance and home loan... I called Discovery a few weeks ago stating I was retrenched and for my cover to be activated only to be told I don't have cover? I said I do have the cover and they must go back to listen to the recording when I signed up and now I am still awaiting feedback. This is not the first time DIscovery have changed things without my permission. Just recently my Planet Fitness was taken off my Vitality and made as a stand-alone contract and it took months of fighting to get it changed back to normal. Now please activate my cover