Someone said Unifi Mobile no longer has this "no expiry date". Maybe for new subscribers.

Mine since 2019 until now still no expiry, although in unifi mobile app now i see valid tll 14 Aug 2024 which i am not sure what is the date for.
Maybe that is the date i need to make a call/sms/data to extend expiry?

Thx btw now i must remind myslf to check with Unifi what is that date about.

I have unifi 90 duration days sim card can know which data package can I use and still maintain my 90 days feature?