11% Recurring Discount → 251111-SINGLESDAY11
33% One-Time Discount → 251111-SINGLESDAY33
原本是上面那样，但实际使用33%反而是循环折扣，11%是一次性
https://lowendtalk.com/discussion/211384/pulsed-media-m10g-raid5-hdd-storage-boxes-singles-day-11-11-special