(1) If licensees fail to apply for a license class upgrade and exceed the license class limit within a present or previous license year, we assess an additional fee. We charge an additional fee of up to fifty percent of the difference between the fee for the present license class and the new license class, or one thousand dollars, whichever is less.

(2) Licensees must pay any required license class upgrade fee, plus any additional fee required by subsection (1) of this section, within thirty days of our notification.

(3) Failure to pay the fees may result in an immediate summary suspension of all licenses.