Is it permissible to send money to one’s home country via a businessman, with an increase of two riyals over the bank’s commission, in order to avoid dealing with usurious banks?

It is permissible to transfer money through interest-based banks out of need and necessity, and one must expedite the retrieval of the money. It is also permissible to transfer money between banks for a transfer fee. It is also permissible to give money to someone to carry it for a known wage, but one must ensure that he will carry the money himself and not through a bank, and that you know the person hired to carry the money is trustworthy and is not liable for it except in cases of negligence or unauthorized conduct.