A: It should be divided into several situations. When it comes to the small mistake, like shortage of the goods, 2 days beyond the estimated arrival time and so on , we will firstly send our apology to you and then give you some discount to show our sincerity. When it comes to the serious mistake, like the quality of the most goods we sent to you, we will resend them to you and give you some compensation or we can discuss the solution including re-call according to real situation.