Can I use a used phone for about a month after opening it?

pu1. Yes, it's possible. You can go to the cell phone agency and open it, use it for a month, and then cancel it in a month, and that's how much it costs

2017-12-02

OK

pu2. If it's for a month, it might be better to use a prepaid phone because that's how many foreigners use it

2017-12-02

OK