Discovery Card Move to Discovery Bank - dont do it

Joined Discovery Bank after looking at their advertising for clients who already have a discovery card. Unfortunately when I did this, the website was not working and they did not communicate that by switching from Discovery Card to the Bank the miles per rand spend would reduce significantly AND the miles multipliers would fall away - ZERO communication or place to see this. Was earning around R 350 per month in miles, now getting less than R 100 per month. Definitely NOT worth switching if you are on Discovery Card with FNB