I have been using Ching Mobile since 2023 and it was my first year in Korea. At that time I order online and my simcard was sent to me at home within 2 days. Super fast lol. Now i have lost my simcard i managed to do simcard replacement. Only replacement need simcard fee so the staff recommend a promotion monthly plan. More cheaper than I'm using now and replace my sim for free within 30 minutes, They are very efficient and foreigner friendly~