Consider the following before updating or switching your PayPal account:

1. Your PayPal needs to be verified.
If your account is not verified, you will see the message "unverified by PayPal".

PayPal can only be used on one account.

​2. If this is not the case, you will receive the message "someone's already using that payment method"

From the Dashboard, select the Menu icon (top right corner of your screen) → Profile Settings→ Payment → Change Payment Method

From Dashboard, select settings → tab payments → Change Payment method

When I try to link my payment method, I get the message "Someone’s using that payment method"

When I try to link my payment method, I get the message "unverified by PayPal"

Single Payment Method-per-User Policy