The table shows that the problem of LIMIT CHANGE OVER CARD LIMIT should be resolved the problem of the large number FAILURE (54.01%), the provision of information through various channels. Especially Middle Income (64.36%) and the LIMIT CHECK before entering into LIMIT CHANGE and staff ready to provide good information to the Retail - KCC - Mass Customer (79.67%), Time 11.00-12.00 (9.14%), Day. Monday (18.33%) And "INQUIRY_SECONDARY_ACCOUNT_BALANCE-10211B" should be fixed for the call to come to FAILURE again a number of matters of ACCOUNT NOT FOUND (68%) and ACCOUNT DOES NOT EXIST (61%) of the check. The true before serving With targeted by the group Middle Income (69.57%, 73.21%).