Wangiri

Wangiri is when someone calls your phone and it only rings once before hanging up. That might seem like no big deal, but if you call them back, you could end up getting charged a lot of money!

The people who do this are usually trying to trick you into calling them back by making it seem like they didn't mean to hang up. They might even use a phone number that looks familiar, like one from your own country, so you don't suspect anything.

But when you call back, you might end up talking to someone who charges you a lot of money per minute or makes you sign up for expensive services. It's important to be careful and not call back numbers you don't recognize, especially if they only rang once.