To change your subscription plan you need to access the SUBSCRIPTION section from your personal panel, and select the desired plan.
The subscription plan can be paid in two ways, monthly or annually. Package prices vary depending on the mode chosen.
Once you click on UPGRADE, you will be shown a window with the billing and payment details. If you want to change the payment data, you will need to go to the BILLING section from within your personal panel.
To complete the UPGRADE click on SUBSCRIBE.