Can I change my subscription plan?
To switch the current to a higher plan, you can go to your account page, click the Billing button and upgrade it manually. Or you can press your profile photo, and click the "Upgrade" button.
The number of days that have not been used in your current plan can be deducted by the corresponding amount.
However, we don't have a way to downgrade a subscription at present. Instead, simply cancel your subscription first, and after the current plan ends, re-upgrade in order to make this sort of change.
You can go to the billing page and click the "Upgrade plan" button.
You can press your profile photo, and click the "Upgrade" button.