When I went to the skt site, I saw that I could change my mobile number. How often can I change my mobile number?
Can you do as much as you want?
111 3 7 years ago
pu2. It was possible twice a month until last year, but it changed to twice a quarter from this year. You can refer to the article below
http://biz.chosun.com/site/data/html_dir/2016/12/0...
2017-12-16
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