Citizens One Loan: Unable to Register Account?

I recently purchased a new iPhone. I keep seeing emails saying that Citizen One was unable to process my payment. I see a number that I can call to make a payment, but I want to be able to manage my loan details online. I filled out the form to create a new account. Then I received this email:

Thank you for registering your iPhone loan [account number] for online access. Please enter the confirmation code below to complete the registration process and access your account online at www.citizensoneloan.com:

[Code number]

Your online access allows you to:

• • Manage your account easily
  • Review your account transactions
  • Update your payment information

Your User Name and Password are case-sensitive and should not be shared with anyone. If you forget either, select the "Forgot User Name" or "Forget Password" option on the log-in screen, and you will be prompted to answer the security questions you selected during the registration process.

Citizens One

There's no link in the email leading me to the place that I need to enter this code. Where does it go?!?

If I simply try to login, I get the following error message: "Invalid account status: Inactive Account"

I found an old (closed) thread about others having difficulty registering, so I've included a link to that thread below. I'm unsure if the causes are related.)

https://discussions.apple.com/thread/7551952

Please help. And let me know if you're having similar issues with registration.

Thanks,

Sara

P.S. ***Please forgive me. I wasn't sure what topic to use. I apologize in advance if this belongs elsewhere.***