If you want to upgrade or downgrade your monthly subscription plan, you can do that anytime. You'll need to inform us about all relevant changes in advance. However, if you want to change your monthly subscription plan to the Pay as you go option, you need to:
Cancel your monthly subscription plan;
Choose a Pay as you go option only when the subscription of the monthly plan ends.
Though, if you want to upgrade from Pay as you go to any other plan, you can do that right away. Your traffic from the Pay as you go plan will be automatically transferred as well. keep in mind - the Pay as you go option is non-refundable.
For assistance, contact our support team at [email protected] or your account manager.