Kulula / Discovery Vitality

We have attempted, on 4 occasions, to book a hotel using Discovery Vitality's travel rewards, as we do annually, only to encounter the Kulula system. Firstly, the site is not stable and or user friendly. Secondly, since my husband and I each kept our own medical aid membership we are now unable to book a room jointly without incurring additional charges (the amount quoted is equivalent to 35% of the total hotel stay). Despite the hotel rate being per room that sleeps 2 and not per person sharing there is an additional fee payable as we are not each other's dependant on our individual medical aid. The solution offered by Kulula's call centre was to book 2 rooms. <br> Why as clients of Discovery are we being forced to deal with Kulula specifically as it relates to a hotel booking. Another excuse to charge a fee?