Kulula Travelbank is a ****!!!!

The impact of Covid has hit a lot of businesses hard however, other companies have not resorted to highway ******* of their clients to ease their financial burdens. Kulula on the other hand decided to implement a Travelbank system where they banked your unused tickets if you couldn't fly during certain periods due to Covid. They then gave you a ridiculously short time to use this Travelbank or they expired your Travelbank. I had booked tickets using my Discovery Vitality discounts on Kulula to go to Mauritius in September 2020 (via British Airways so not even on a Kulula flight). After a ton of phone calls, I was given a Travelbank in September 2021 which had to be used by 30 November 2021. Kulula then expired the Travelbank on 1 December 2021 and after a number of calls and a number of emails, they reinstated the Travelbank but now I have to use it by August 2022. The amount in the Travelbank is over R 20 000 which I can only use on local flights and which I must book by 31 March 2022. Where am I going to fly in SA for that amount of money within the next 7 months??? They do not bother responding to emails that I've sent and are just happy to take my money and remain silent about it. Kulula's customer service stinks. I want my money refunded and am happy to take this further as I have been prejudiced and it is unacceptable. It is not a small amount of money.