1. Open your web browser and go to the Poper application.

2. Log into your account to view the dashboard.

From the dashboard, click on the 'Billing' icon on the left sidebar, view the subscription options..

1. Review the subscription plans available—'Basic', 'Growth', and 'Scale'.

2. Click on the 'Upgrade' button beneath the plan you wish to purchase.

1. On the checkout page, select the desired plan again if needed.

2. Enter your email address and payment details including the card number, expiration date, and CVC.

3. Provide your billing address and any other required information.

4. Review your order summary, ensuring the correct plan is chosen and the total amount is verified.

5. Click on the payment button to finalize your subscription.

1. After payment, you should receive a confirmation message indicating a successful transaction.

2. A receipt and details of the order will be sent to your email.

1. Return to the 'Billing' section in the 'Settings' tab.

2. Confirm that your subscription status reflects the new plan, with the details of pageviews, AI credits, and other plan specifics displayed.

Remember to manage your subscription settings and keep track of your usage to make the most out of your chosen plan.