Characteristics of contract package
The purchase cost of contract machines is often much lower than that of non-contract machines, and it also includes telephone charges. During the contract period, the contract machine will refund the phone bill every month. Generally, the contract period is two years, and the phone bill of the contract can be discounted, so the phone bill per month is very small. Users who buy contract machines will bind their mobile phones to users, and mobile phones and mobile phone cards are bound. In addition, during the contract period, the mobile phone and the mobile phone card must be used together, otherwise the phone bill will not be refunded.