You can switch to the Unlimited plan at any time. Unlimited plans are billed monthly, but there is no service contract. Here's how to switch:
- Choose Direct Mail > Direct Mail Account from the menu bar.
- Click the "Change" button located in the "Billing Plan" section.
- Choose your plan.
- Enter your credit card information.
- Click Purchase.
A receipt for your purchase will be sent to your account's email address.
If you were on the Pay Per Email plan before switching, any unused credits will still be available should you ever switch back.