How does Brankas routes funds and what are the bank transfer fees when as an example, HSBC is set as the destination account?

Banks charge end users the interbank fee upon successful transactions. If you are using HSBC as a destination account it means any transaction from our source banks will be imposed an interbank fee by the source bank to the end user. If you are thinking about not imposing end users with interbank fees, you can create an account in each bank, mimicking source banks, and treat transactions as intrabank (same bank) transactions.

Brankas charges merchants a fee per transaction via an invoice we send every month on a specific date.