How do I enter a code in ProtonVPN?

To enter a code in ProtonVPN, one must typically start by signing into their ProtonVPN account on the ProtonVPN website or within the application itself. Once logged in, users need to navigate to the dashboard or the account settings section where there is usually an option to redeem or enter a code. This feature might be labeled as 'Enter Code', 'Activate Code', 'Redeem Code', or similar. Upon locating this option, they simply enter the provided code into the designated field and submit it. The system will then process the code, and if it's valid, apply any associated benefits to their account, such as extending the subscription period or upgrading the service level according to the specifics of the promotional or voucher code entered.