Talk:Japan/@comment-174.30.193.87-20170203183222/@comment-3564598-20170222043006

You bought the wrong SIM type. Those are intended for locals, are set up to automatically charge a credit card or bank account for uninterrupted long-term service and some do come with a minimum contract term or are difficult to cancel. Tourist-oriented SIMs are only valid for a fixed length of time and will not auto-renew without explicitly requesting it.