12. i. Every question relating to valuation for the purpose of determining the amount of any fee chargeable under this chapter on a plaint or memorandum of appeal shall be decided by the Court in which such plaint or memorandum, as the case may be, is filed, and such decision shall be final as between the parties to the suit.ii. But whenever any such suit comes before a Court of appeal, reference or revision, if such Court considers that the said question has been wrongly decided to the detriment of the revenue, it shall require the party by whom such fee has been paid to pay so much additional fee as would have been payable had the question been rightly decided, and thereafter:(a) if the party required to pay is the appellant or petitioner, the provisions of sub-sections (2) and (3) of section 8B shall, so far as may be, apply; (b) if the party required to pay is the respondent or the opposite party, the provisions of sub-section (2) of section 8B shall, so far as may be, apply, and, if such party fails to pay the fee required before the date fixed by the Court, the Court shall recover the amount of such fee from him as a public demand:Explanation.For the purposes of this section a question relating to the classification of any suit for the purpose of section 7 shall not be deemed to be a question relating to valuation.