In all cases, for the purposes of determining the overall effective rate of the loan, as well as the effective rate taken as a reference, any direct or indirect charges, taxes, commissions or remuneration of any kind, borne by the borrower and known to the lender on the date of issue of the offer of credit or the amendment to the credit agreement, or the amount of which can be determined on these same dates, and which constitute a condition for obtaining the credit or for obtaining it on the terms advertised, shall be added to the interest.