And it is hereby enacted, that no claim to abatement or remission of Revenue unless the same shall have been allowed by the authority of Government, nor any private demand or cause of action whatever held or supposed to be held by any defaulter against Government shall bar a sale, or render a sale under this Act void or voidable ; nor shall the plea that money belonging to the defaulter, and sufficient to pay the balance or part of it, was in the collector’ hands, bar a sale or render a sale under this Act void or voidable, unless such money stand in the defaulter’s name alone and without dispute, an unless after application in due time made by the defaulter, the Collector shall have neglected, or refused on insufficient grounds, to transfer it to the credit of the estate.