You can use either of below options to change your number type:
A. Cancel the existing number and get a different number:
Login Online https://my.iplum.com
Cancel your existing iPlum subscription online.
Accounts || Click iPlum Login ID of the User || Cancel Line. Select immediate cancellation.
If the subscription was purchased at Apple App Store or Google Play, it will cancel at end of the current term.
Go back to Dashboard & Accounts || Click iPlum Login ID of the User || Get iPlum Number to setup a new subscription type.
B. Open a sub-account & let the first account expire:
Accounts || “Add Additional Line”. You can use an Email address as login ID or a different phone number. Complete the registration process for the add-on account login.
Login back in as Primary account in your iPlum portal .
Accounts || Click iPlum Login ID of the sub-account || Get iPlum Number to setup a new subscription type.
Login iPlum App on your phone using the new Login ID.