auto payment refund.

hi my name is kwangwook choi,

i used 2135872619 t-mobile prepaid line when i was student in america,

but i leaved america on july 4th so i didn't use any service with my 2135872619 line.

i tried off auto payment system on internet. and i thought autopay was disable that time.

but it's still alive, i just know that, please refund or cancel my payment after july 4th. thanks.