DSTV anniversary upgrade not cancelled automatically but I am told am liable to pay premium

I am so disappointed with DSTV and the unfair treatment. I recieved an anniversary upgrade from compact plus to Premium. I claimed the reward. To my surpised, when the pariod ended on 25/12/2022, downgrade to compact did not take place. I checked my similar complains about similar issue where the customer gets blame for not downgrading on their own because DSTV does not was to account for their mistake. I will do the honorable thing and complain on each platform and even send it to their CEO and Board member until the the issue it resolved.