Lito obtained a loan of P1,000,000 from Ferdie, payable within one year. To secure payment, Lito executed a chattel mortgage on a Toyota Avanza and a real estate mortgage on a 200-square meter piece of property. Lito's failure to pay led to the extrajudicial foreclosure of the mortgaged real property. Within a year from foreclosure, Lito tendered a manager's check to Ferdie to redeem the property. Ferdie refused to accept payment on the ground that he wanted payment in cash: the check does not qualify as legal tender and does not include the interest payment. Is Ferdie's refusal justified?