If I have worked in this position, the problem occurs with each customer. I am going to gradually solve the problem to the first example. I'm so sorry, customers first, so he's cool.
I have worked in this position. Of problems with customers I will gradually solve the problems one by one, first I have to apologize to our customers before. So he calmly
If I had worked in this position, there is a problem with the customer. I"ll gradually solved one by one, first of all, I have to apologize to the customer first, so that he was cold.