1. Sorry, the number you dialed is out of service.
对不起，您拨打的电话已停机。
还能这样说：
Sorry, your mobile phone was shut down.
Your mobile phone had no service.
应用解析：
at sb.'s service 为某人效劳，随时提供服务；
be in sb.'s service 在某人家里当佣人；
be of service to 对……有用；
bring into service 交付使用；
come into service 投入使用
2. My telephone charge is overdue.
我的手机欠费了。
还能这样说：
My telephone charge is in debt.
My telephone charge is out of credit.
应用解析：
give sb. charge of 委托某人照管，授权某人管理；
give sb. in charge to 把某人送交警察，把某人交警察看押；
have (the) charge of 负责…… 主管……
3. I haven't paid my phone bill yet.
我手机停机了。
还能这样说：
My phone gets no credit.
My phone is parking.
应用解析：
fill the bill 适合于；
head the bill 清单或节目单上最主要的节目或角色；
bill and coo 接吻
4. I have no money to pay the phone bill.
我没钱交话费了。
还能这样说：
I am lack of payment capacity for my cell phone.
I could not indeed afford my phone bill.
谚语：
Money breeds money.
钱生钱，利滚利。