You can delete an internal account that is no longer in use. You can also archive instead of deleting it.
To delete an internal account, follow these steps:
Log in to your Prospa app
Tap Accounts on your homepage and select the particular account
Tap More (three dots)
Tap Delete or Archive
A confirmation pop-up will appear—confirm the action and enter your PIN.
Note: You cannot Delete or archive a funded account. You would have to transfer the funds to another sub account or main account for you to complete the action.