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1. The Defendant is written in attached Table 1 from April 1, 2015 to October 31, 2016, to the Plaintiff.
Reasons
1. Basic facts
A. On October 201, 201, the Plaintiff entered into a credit card membership agreement with the Defendant (the parties at the time of the contract were D, but at the time of the contract, E Company was established on September 1, 201, and was transferred the rights and duties regarding the credit card business portion of D, and E Company changed the Defendant’s trade name on December 1, 2014; hereinafter “Defendant” regardless of the aforementioned division and trade name change; hereinafter “instant card”) and the Defendant’s F Card issued via the Internet (hereinafter “instant contract”).
The annual fee for the credit card is KRW 100,000 (basic annual membership fee of KRW 5,000, annual membership fee of KRW 95,000), and the Defendant agreed to provide additional services, such as providing the card use amount of KRW 20,000 per 1,50,000, in addition to services arising from the original function of the credit card.
The Plaintiff was issued a credit card listed in the separate sheet according to the instant contract.
B. Around February 26, 2013, the Defendant: (a) announced that C mileage offered to the members of the instant card on the Defendant’s Internet website, etc. is changed to 1.8ma days per card use amount from September 1, 2013 to 1,500 won; and (b) provided the changed C mileage from September 1, 2013 to 1,500.
From September 1, 2013 to March 2015, the Plaintiff was provided 73,250 C mileage according to the ratio of accumulation of mileage changed from the Defendant.
C. On December 13, 2010, the Defendant amended the Defendant’s standard terms and conditions for personal members (hereinafter “instant standard terms and conditions clause”) under Article 14(3) of the same Act, “Additional services, such as points and discount benefits, offered at the time of the use of a credit card, shall be maintained without reduction or abolition for not less than one year after the new withdrawal of the credit card, and when the additional services are modified, six months prior to the date of change as to reasons for change, details of use, mail letter, e-mail (E-M).