27 CFR § 478.46
Insufficient fee
April 24, 2020
If an application is filed with an insufficient fee, the application and any fee submitted will be returned to the applicant.
(18 U.S.C. 847 (84 Stat. 959); 18 U.S.C. 926 (82 Stat. 1226))
[T.D. ATF-200, 50 FR 10498, Mar. 15, 1985]