If a bank employee sells a financial product, it should be explained sufficiently to enable
the customer to understand the main contents such as the basic structure of the product and
the possibility of loss of principal. If a sales contract is established with a misunderstanding
similar to a deposit or savings without sufficient explanation of the main contents of the
product, it is likely to become an incomplete sale. Of course, in case of a dispute related to
a loss due to financial products sold at a bank counter, etc., a loss due to incomplete sales
can be compensated in principle. However, even if compensation is given, only a part of the
damage amount will be compensated. However, in fact, cases of incomplete sales court
decisions and dispute settlement cases often cause customers to bear part of the damage. The
logic applied at this time is 'investor's principle of self-responsibility'. This means that investors
who buy financial products will be responsible for the losses incurred after the purchase. In
the end, the damage caused by incomplete sales is the responsibility of financial consumers,
who are buyers of goods. In order to recover the damage, it is necessary to consult with
financial companies, apply for dispute settlement, and file a lawsuit. In any case, since
incomplete sales can not be completely prevented, it is necessary to carefully examine the
recommended product and purchase the product only to the extent that the loss can be
tolerated. In addition, since the financial supervisory authorities are not able to prevent actual
damage even if the system is improved, sellers must comply with the principle of 'customer
profit first' and 'sales rule', and buyers should purchase prudent financial products with
'self-responsibility principle' , And efforts to prevent the occurrence of disputes are necessary.