The phone bill of Heyuan Telecom Card in 350 yuan will be paid in 50 yuan after activation, and the rest will be paid in 20 months, with a monthly fee of 15 yuan. How to pay the monthly phone bill? ..

The phone bill of Heyuan Telecom Card in 350 yuan will be paid in 50 yuan after activation, and the rest will be paid in 20 months, with a monthly fee of 15 yuan. How to pay the monthly phone bill? ... Hello, this is my card. I can't. The monthly rent is deducted from the telephone bill, and only the communication expenses (telephone, SMS, roaming, etc.) will be deducted from the bursary. Moreover, if the funds are not used up at the end of the month, they will be updated next month and will not be included in the phone bill balance. If you check the phone bill, the SMS shows that your current authorized amount is 15 yuan, of which the used fee is … yuan and the phone bill balance is … yuan. By next month, the used fees will be updated to 15 yuan, and the phone bill balance will be how much.