Sanlam Reality Hiding behind technical terms

As a paying member since 2015 of Sanlam's loyalty offering I have had some issues, but always resolved, but seems like service is no longer where it use the be. I booked a plan ticket to Durban, but made a mistake on the date, as i took the option that gave me 2 free changes I didn't worry as i felt covered and new i would have to pay any difference in flight prices. Not that's where my issue starts, the flight was eg. R2600 that I have to pay after my reality discount, when I tried online i could not change with any discount, when i phoned in I was asked to pay in R1300 which made not sense to me as when i check a flight independently the only difference after discount was R60. So the change date flight with discount was only R60 more but I am being asked to pay in R1300. I raised this with FlySafair and they referred me to Reality. They only gave me discount on the additional R1300 not wanting to acknowledge that this is just wrong. Non on the T&C (i have screenshots) at the time, nor the advertising of 2 free flight changes on selection shows why I would need to pay more, I even spoke to the Operations Manager, but no feedback...sorry to say very very disappointed in the feedback and support give.