After Unicom uses the traffic eraser, how long will it take for the previously deducted phone bill to arrive?

When the user uses more traffic than the package, he can order the "traffic eraser function package", and can erase the out-of-package traffic generated one month before ordering and calculate it into the usage of the traffic eraser function package, and at the same time erase the out-of-package traffic fee generated before ordering, and the erased traffic fee is shown as "eraser discount fee" in the bill. The specific arrival time depends on the actual situation. If necessary, you can contact local customer service for inquiry and handling.