John Gill Commentary Esther 6:3

"And the king said, What honor and dignity hath been bestowed on Mordecai for this? Then said the king`s servants that ministered unto him, There is nothing done for him." — Esther 6:3 (ASV)

And the king said, what honour and dignity has been done to
Mordecai for this ?
&c.] He judged it an action worthy of regard, and what ought to be rewarded, as it was the saving of his life; but had forgotten whether any royal favour had been shown to the person for it:

then said the king's servants that ministered to him ;
the lords of his bedchamber then in waiting:

there is nothing done for him ;
not on that account, nothing more than what he had; he had an office at court before, but was not advanced to anything higher on this account.