Provided always, and be it further enacted, That if any or either of the Parties hereby made liable to the Payment of such Penalty and Quintuple Duty as aforesaid shall give Information to the Commissioners of Stamps, whereby such Penalty or Quintuple Duty, or any Part thereof, shall be recovered from any other Party or Parties liable thereto, the Party or Parties giving the Information shall not only be indemnified and discharged of such his, her, or their Liability, but shall also be rewarded by the Commissioners of Stamps, out of the Penalty or Quintuple Duty so recovered, to such Extent as the said Commissioners or the major Part of them shall think proper, but not exceeding One Half of what shall be so recovered ; and where any other Person shall give Information, whereby any such Penalty or Quintuple Duty shall be recovered, he or she shall be rewarded in the like Manner.