To change your plan, you need to be on the most recent eSIM from World Mobile. First, log into your account at my.worldmobile.io. Then, access the line you wish to change under 'Plans' then 'Manage'. At the bottom of your line, you will find the option to upgrade or downgrade your plan as well as change your billing period to the timeline of your choice. If you do not see the option to upgrade or downgrade your eSIM, you will need to reach out to our support team and request the latest eSIM by submitting a ticket.