Sim only plan哪家好？目前使用GRID，20G data用的还可以，可是突然收到如下信息，请问还有哪家也在用Singtel的网络，提供便宜的Sim Only计划？谢谢！ Dear Customer, Grid Mobile will cease service on 6 Dec 2021. Check your email for details. It's been a joy serving you and thank you for your support!