Jagex/JMods can only show you an expiration date of those membership agreements which have an 'aforementioned/pre-determined' expiration date set by Jagex/JMods.
Recurring subscriptions are subscriptions controlled by members themself as said member is the only person who knows when they wanna 'end/terminate' said subscription, therefore Jagex/JMods have no knowledge when said subscription expires.
The page you referred to exactly tells you the truth, Jagex/JMods telling you what you agreed upon according to their information they have about your account.
What Jagex/JMods could do is mention about a 'recurring membership' but information about its expiration still lies with said member (player) and can't be 'displayed/guessed' by Jagex/JMods.
05-Nov-2023 09:15:40