Discovery Vitality not honouring their obligations based on bias

After years of ensuring I maintain the Diamond status for the travel benefits I am not able to enjoy them. I wanted to book my birthday vacation and stay with one of the Vitality Hotel Collection, and failed to do so via the Vitality website. I then sent a chat on the website and was advised to call their Travel Centre. After holding for 30min to speak to a consultant I was told that because I do not have an SA ID i cannot book the discounted accommodation as only Discovery Bank vitality members are able to book to make use of their discounts. I find this very unfair and biased because Vitality invited me to join using a Passport, but now when it comes time to claim the benefits I cannot access them. This is such a ******* and if we cannot enjoy the full benefits of Vitality when each month I pay for my medical aid and vitality in full via debit order and do not owe, what is the point? If this is the case, then those of us without ID's should then be given an option to pay a cheaper vitality option which excludes those benefits that we will not enjoy, otherwise this is blatant abuse of customers.