Yup I do think SMART's BIS is more reliable and systematic. Once you apply for BIS, it would be activated in minutes. In my experience, Globe takes a minimum of 30 minutes before being activated and could be delayed for as much as 5 hours. One good thing about Globe's system is that it isn't very strict. I only applied for 1 day service and until today, my BIS is still active... it has been more than a month.