My mobile phone sent a text message saying that I was in arrears, but I called to check that the balance was still over 50. Why was my traffic stopped?

If you are already in arrears, it means that the balance you inquired is the "account balance", not the "current available balance of the account". The "current available balance of the account" is the real balance that can be used, which means that you Now there is no balance in the "current available balance of the account" and the balance is already in arrears.

1. The current available balance of the account: the total balance of the account at the beginning of the month after deducting the current month's consumption and related arrears. This is your real available phone balance. How much balance is available, see "Account Current "Available Balance" is enough;

2. Account balance: refers to the amount remaining on the account at the beginning of the month after the previous month's cancellation (including available pre-deposits, available grants, frozen pre-deposits, and frozen grants) , because the current month’s consumption has not been eliminated. For example: For users who enjoy monthly free phone calls, the unused free money will be stored in the account as a frozen total, forming an account balance, but this amount cannot be used immediately and is not a truly usable balance.