Thank you for contacting U Mobile.



We sincerely apologize for the delay in investigating on the issue reported for case number 5429907.



Kindly be informed that we had notified the respective department with immediate effect as we are concerned towards this matter. We wish to clarify that we are taking the necessary steps and committed to ensure the case reported is resolved. Your patient and understanding is much appreciated. Rest assures, we will update you on the result once our investigation is completed. We sincerely apologize for the inconveniences due to this.



For enquiries, dial "1318" if you are calling from your U Mobile phone OR dial "(+6) 018 388 1318" if you are calling from other fixed or mobile phone lines.

 

Thank you.

There is 2 things here,
1). U Mobile prepaid
2). UMI (Internet/Data plan)

If your  friend is using a smartphone , chances are, the smartphone is requesting / sending data from the OS / apps even without the user's  interaction .

Did your friend subscribe to the UMI plan?

really? I rarely receive one    while I'm getting a lot for my digi line