Likely Legitimate/True - Promotional message about M1 roaming data offer

<ADV> M1: M1 turns 28 and we're grateful to have you with us. Enjoy FREE 9GB ASEAN roaming data every month from April to June. Claim your gift here: https://m1.sg/4jwVgOv Offer valid for <PHONE_NUMBER> till 24 Apr 2025. T&Cs apply. To unsub, please visit https://shop.m1.com.sg/communication-preferences

✅ This is a legitimate promotional offer from M1. The message offers 9GB of free ASEAN roaming data as part of M1's 28th anniversary celebration. The links provided are safe and lead to M1's official website, confirming the offer's authenticity. The details align with typical telecom promotions, and the communication preferences link is a standard feature for managing marketing communications.