Discovery Miles Multiplier benefit no longer applies

I was persuaded to move my credit card account from Discovery Card to the new Discovery Bank Black. I was assured by the agents that there was no loss of benefits, Discovery Vitality et alia which is correct with one major glaring omission. Discovery Miles Multiplier has been removed, no mention made when I signed up. Discovery Bank site while talking up the Miles benefit is silent on this very material change. The result is that all in all the new card costs me of the order of R200 per month more. Had this been advised I would not have moved to Discovery Bank