In Progress Data usage warning

May 15, 2012
Device: Xiaomi Mi-One Plus
ROM: MIUI 2.5.25

Monitor.apk was removed by Xiaomi due to bugs today :(
So after some data use my device started to pop-up this notification to status bar:

Data usage warning: Touch to view usage and settings

clicking it -> no reaction

This all though is probably on this build only?