When an exporter issues their payment details, they include the banking details of their home bank. For example an exporter from the United States will include their local bank details from the US and an exporter in India will do likewise with their local bank details.
When you sign up with us, you get a virtual bank account in Europe, including your own IBAN number. The account is not a bank account, but functions like one when it comes to collecting payment. When you include your B2B Pay payment details on your invoice or contract, as far as your customer is concerned it will be the same as making a local bank transfer.