It took me more than a year to brush the box and paid for it. The last brush flow was July 3 1. Your estimate is incorrect.

In fact, the box payment is rubbish, the rate is 0.38, and you will be charged 0.5. Now the personal version is 0.78, so you can't withdraw the amount by credit card.

I have stopped using it. If I brush frequently, I'd better apply for a traditional POS machine.