never admit errors or mistakes, 向白人學的。哈哈, until you have exhausted other ways.
e.g.
- state correction as update (as in your instance);
- when you foresee a delay of a delivery, tell them in advance to "update" the delivery date;
-You can say 'apologize', but it should be targeted for some minor points, such as 'inconvenience', note: not a mistake;
......There are many ways, watch TV, movies to learn the "minor" deference of the words used. There are books.
