In my home country, SMS spamming is beyond insane. I mean 5 to 10 daily promotional SMS This was bad in Sri Lanka too. I've used Dialog and Mobitel and they bo

In my home country, SMS spamming is beyond insane. I mean 5 to 10 daily promotional SMS This was bad in Sri Lanka too. I've used Dialog and Mobitel and they both used to spam me, but luckily there's an opt out for these. I think the fact that you're getting these is because, as you say, it's not easy to switch. Any place where options are limited are ripe for abuse like this. In Sri Lanka, it's not uncommon for people to have 2-3 lines from just as many providers (in case one doesn't have coverage or you want to give one number to your wife and the other to your girlfriend). And it's also not unheard of for people to throw away numbers if they get too cumbersome (though this is limited by requiring an ID these days due to nefarious activities). It's quite a culture shock after coming back to the U.S. where not many people understand the concept of actually "owning" a phone. I mean you say "my phone", but while under contract, you can't leave your provider, get a new one (lest you pay an exorbitant fee) or do anything to the phone itself without rooting cause it's still on a locked-in leash.