Banking and financial services, namely, banking, investment banking, cash and foreign exchange transaction, exchange of foreign currency; banking and financial services, namely, savings account services, checking account services, demand deposit account services, time deposit account services, trust services, namely, investment and trust company services, assumption of obligations at someone else's expense, namely, financial guarantee and surety services, granting of pledges, bonds, and internal and external letters of credit; providing advice and information on financial portfolio management; administration of financial portfolio management; arranging and provision of credit and loans; receipt of loans and acceptance of credits of national and foreign financial institutions, namely, loan financing; granting of mortgage loans or loans secured by pledges, with or without title issuance; unsecured credits, namely, unsecured loan financing; open account loan financing; negotiation of bills of exchange, orders of payment, promissory notes, invoices, and other documents that include payment obligations from credit sales, as well as the advance payment of funds endorsed by the above mentioned documents; negotiation of documents resulting from foreign trade transactions, negotiation of credit instruments; acquisition, guardianship or transfer of bonds on behalf of third parties; providing for the exchange of foreign currencies, currency arbitrage services, securities arbitrage services; issuance and negotiation of traveler's checks; cashier and treasury services, namely, receiving and disbursing payments of funds for others; collection of debts, namely, accounts payable; electronic funds transference services; receipt and guardianship in deposits of movable properties, valuables and documents, namely, safety deposit box services; issuance and operation of credit card services