This error occurs when you try to add a new withdrawal account with the same description as a previously added or existing withdrawal account.
All withdrawal bank accounts must have a unique description; you cannot use the same description, even if it's for two different currencies or funding methods. This applies across our different banking partners and different transfer methods: Bank Transfer; EFT; FPS; SEPA; SIC; SWIFT; and FedWire, as well as crypto wallets.
For example: If you have a Euro (SEPA) withdrawal account called "My bank", you cannot add additional withdrawal addresses for Euro (SWIFT); Canadian Dollar (EFT); US Dollar (FedWire); etc. also called "My bank".
To prevent these errors from occurring, you can modify the description to "My bank New", "My bank EFT", "My bank_2", etc.