YSK: once your contract is up with your internet/tv/cellphone/security system provider, call in and say you want the cancelation department. Only renegotiate pricing with them
from /r/YouShouldKnow
YSK：一旦你與你的互聯網/電視/手機/安全系統供應商的合同到期，打電話說你想取消部門。只有與他們重新協商價格