How do increase iCloud data storage to 1TB?

How do I increase data storage to 1-2 TB? The link opens to select storage. However, the system does not respond whether 1-2 TB is or not setup.

The ball is in your Apple court. I’ll be really really ****** off if I lose any data. Consequently I expect someone from Apple who can address the my request for 1-2 TB of Storage data for both iPad and iPhone.

[Re-Titled by Moderator]