Same shit happened to me. I reloaded my phone for RM30 i remember. then after a couple weeks, my phone balance is gone. not enough to subscript for the monthly RM30.
Then check E-statement, all the "premium-SmS from macro kiosk".
I called to request for refund, i ask how did i subscript to such services
Cut to the chase,
refund need wait for 15 days, dont know if i can get it.
I also lodged a sms scam report to the skmm.gov.my link you provided. thanks.