To upgrade your current Sony LIV subscription to a higher plan, follow these steps:

Accessing the Upgrade Option:

Log in to your Sony LIV account.
Navigate to the "My Account" section.
Look for the "Upgrade" options available.
Available Upgrade Plans:

If you're on the Mobile Only 12 Months plan, you can upgrade to the LIV Premium 12 Months plan.
If you're on the LIV Premium 1 Month plan, you can upgrade to the LIV Premium 12 Months plan.
Selecting and Confirming the Upgrade:

Choose the desired plan you wish to upgrade to.
Follow the on-screen instructions to complete the payment for the new plan.
Please note that the upgrade options are subject to change, and it's advisable to check the latest details in your account or contact Sony LIV's customer support for assistance.