Completely Dysfunctional Web and App

This airline website is the most dysfunctional airline site ever experienced. The site is incapable of accepting a credit card payment. I am an emerald member so it’s not as if I have not tried to support the airline. For the last six months of attempting to book online and not once have I been able to successfully conclude without having to call in and waste my time getting a payment link. Today I tried in desperation to use the EFT paygate and that resulted in money being deducted from my account and NO BOOKING confirmation being confirmed. Apparently the site said that it was a ‘booking error’. I have now water time on the phone for hours trying to rectify but the agents at Airlink are not empowered to assist (in fairness they are very friendly). The system is however dysfunctional. I have also sent several mails to customer service with various other dysfunctional issues iro the site and app but it seems nobody really cares to respond. How easy can it be to copy an easy jet , Ryan air or even Kenya Airways website.