In Bali now and have the misfortune of getting a simPATI sim card. As well as non-stop SPAM messages, they also preceed every legit message you get and you have to make sure you hit the back button to get out of it.
Last night it started going off all hours of the night as well.
So be warned - don't get trapped by this card if you want a peaceful holiday. Also don't choose TELKOMSEL if global roaming - you get spammed too.
Have a good one. - but NO SIMPATI - changing it later.