Hi @Njreese! Thanks for posting!
You can upgrade via the web.
Open up your favorite browser, visit www.pandora.com, log in with your Pandora email address and password.
If you're already logged into Pandora, make sure you are logged in with the correct email address you'd like to upgrade. To check, click the icon (initial or picture) in the top right corner of the page and selecting Settings to view the email address.
Then, click here.
Select your payment method: Credit Card or PayPal.
If paying by credit card, enter your card information on the Payment Information page.
If you selected to pay by PayPal, follow the prompts to complete the transaction. If you do not have a PayPal account you can create one here.
Let me know if you have any trouble.