Placing someone's money in bank, and giving him the cost for placing his money in bank for bank statement

If I get some investor to put money in my bank account for 40 days, basically i need bank statement for study visa, and i have to pay the investor 5-10% of that money which he put in my bank for my bank statement of 40 days, after which he will take money out of bank. Is it permissible or not? Note: It's not an investment, not a business loan, nothing. It's just he will place the money in bank for 40 days and we pay 5-10% of that to him. This is only for my bank statement to show for study visa, applying for United Kingdom.