[eSIM] 更低价购买Singtel 30SGD 游客卡的方法

Pelago上面的Singtel卡有折扣
先注册个帐号: https://pel.sg/s7bZEv
注册完后去 https://www.pelago.com/en-US/activity/p8pl4-singtel-prepaid-sim-card-singapore/