1, EXW export, itself needs to be exported in your name, after all, foreign exchange goes to your account;

2. Yes, for example, fill in a little more money for the next export, which generally does not exceed 20% of the actual contract price;

3. Yes, the method is the same as 2;

In other words, in the future, the export overcharged, and the original overcharged part was written off after several overcharges.