There are two ways to reject a trademark. The first way is to completely refuse, and the second way is to partially refuse.
In the first case, all categories applied for registration are rejected. In view of this situation, if you want to successfully register a trademark, you must file a request for reexamination, which is more difficult, so the general agency fee will be higher.
In the second case, some categories applied for registration were rejected. In view of this situation, if you want to strive for successful trademark registration in the rejected category, you need to make a request for re-examination. If the rejected category is abandoned, the Trademark Office will only make a preliminary examination and approval announcement for the category that has not been rejected (that is, the approved part), and within three months after the announcement, if no other person raises any objection, a trademark registration certificate will be issued.