As your private insurer, we are only a third party to your original purchase.

The format that will ensure the fastest possible refund is the IBAN format.
https://transferwise.com/gb/iban/

We also need the BIC / SWIFT number of your banking institution. This number is the international identifier of your bank (every bank has one). This number is often found on your credit card.
https://transferwise.com/gb/swift-codes/banks