To upgrade the account, go to the "Settings" tab → "Billing" → "Subscription" and click on the button Change plan;

This action activates the pop-up window. Choose the desired tariff plan and press the "Upgrade" button;

When registering a tariff plan, you will see the window with this statement "I agree that this is a recurring payment, and Stripo will automatically charge the subscription fee at the end of each billing period to renew my subscription until I cancel. I may cancel at any time to prevent future charges." i.e., you must click this option to continue payment.

If you want to receive a bill after the payment, please enter the "Billing" menu and download it in the "Payment History" section;

Also, if you want to send bills to your finance department, you can specify the financial emails in the field under the "Billing Address" section;

If you need to change a Company address in the bill, please fill in the corresponding fields in the "Billing Address" section;

While the Company name can be changed in the "Workspace" section → "Company" and new account data will be updated automatically in all your bills;

If you want to add your profile name to the bill, enable the "Include Profile Name" control.

You may terminate your subscription in your account "Billing" → "Subscriptions" menu by clicking the "Cancel Subscription" line;

In this case, you will be able to use the selected tariff for the paid period. After the paid period has expired, your account will be automatically downgraded to a FREE plan, and no new charges will be performed;

Besides, all previously created email messages and templates will be saved in your account even after your subscription is canceled.