From:maplestory.nexon.net
Due to technical error, 2x EXP and 2x Drop cards didn't work today(December 25th). We sincerely apologize for the inconvenience. We have prepared compensation for the users who got affected by above issue. Only users who had 2x EXP Everyday Cards, 2x EXP Weekday Cards, 2x Drop Everyday Cards, 2x Drop Weekday Cards, or 1 day 2x Drop Cards at December 25th will be compensated. The compensation will be done during upcoming server check. (December 26th)
The compensation will be done as below:
1. 2x EXP Cards - Expire dates will be extended for 2 days. (If it has been already expired, 1,000 maplepoints will be given for each cards you had)
2. 2x Drop Cards - Extend expiration date to 2 days. (If it has been already expired, 800 maplepoints will be given for each cards you had)
3. 2x Drop Card "One Day" (If purchased at December 24th or 25th.) - 4,000 maplepoints will be given to your account.