“I understand you have appealed to the First-tier Tribunal against the previous decision not to allow this claim. However, in light of this repayment, you may want to reconsider your position in respect of the appeal . If you decide one is no longer necessary, please write to the tribunal and quote your appeal reference number in the correspondence.” 12. Ashtead did not request a review or make any appeal to the FTT in relation to the protective assessment. On28 April 2016 , HMRC wrote to Ashtead stating that the appeal which had been notified to the FTT in 2007 was no longer valid as the decision under appeal had been reversed and a protective assessment issued. Ashtead’s representative, Ian Spencer and Associates Limited, wrote to HMRC on 9 June objecting to HMRC’s view that the 2007 appeal was no longer valid. Darfield 13. On28 September 2006 , Darfield wrote to HMRC to claim a repayment of£5,919.46 of output VAT overpaid on gaming machine takings in the period1 July 2003 to30 June 2004 . The letter stated that the claim was made on the basis of the decision of the ECJ in Linneweber and included calculations showing how the overpaid VAT had been calculated. By letter dated 17 October, HMRC asked Darfield to provide further details in relation to the claim. Darfield provided some further information but not all the details requested in a letter dated 30 October. HMRC acknowledged receipt of the information, gave an explanation of the applicable law and rejected the claim in a letter dated 10 November. Darfield lodged a notice of appeal with the VAT and Duties Tribunal on 4 December. 14. In a letter dated23 November 2010 , HMRC informed Ashtead that£5,920 had been repaid or credited to its account together with statutory interest of£1,103.62 . The letter continued in materially identical terms, save as to amounts, to the letter to Ashington quoted above and included the same final paragraph as in the letter to Ashtead. Darfield did not request a review or make any appeal to the FTT in relation to the protective assessment. Legislative framework 15. Section 83G VATA94 provides materially as follows: “(1) An appeal under section 83 is to be made to the tribunal before - (a) the end of the period of 30 days beginning with - (i) in a case where P is the appellant, the date of the document notifying the decision to which the appeal relates … … (6) An appeal may be made after the end of the period specified in subsection (1) … if the tribunal gives permission to do so.” 16. Rule 2 of theTribunal Procedure (First-tier Tribunal) (Tax Chamber) Rules 2009 (‘the FTT Rules’) provides, so far as material: “(1) The overriding objective of these Rules is to enable the Tribunal to deal with cases fairly and justly. (2) Dealing with a case fairly and justly includes— (a) dealing with the case in ways which are proportionate to the importance of the case, the complexity of the issues, the anticipated costs and the resources of the parties; (b) avoiding unnecessary formality and seeking flexibility in the proceedings; (c) ensuring, so far as practicable, that the parties are able to participate fully in the proceedings; (d) using any special expertise of the Tribunal effectively; and (e) avoiding delay, so far as compatible with proper consideration of the issues. (3) The Tribunal must seek to give effect to the overriding objective when it - (a) exercises any power under these Rules; or (b) interprets any rule or practice direction.” 17. Rule 5 of the FTT Rules states: “(1) Subject to the provisions of the 2007 Act and any other enactment, the Tribunal may regulate its own procedure. … (3) In particular, and without restricting the general powers in paragraphs (1) and (2), the Tribunal may by direction - (a) extend or shorten the time for complying with any rule, practice direction or direction, unless such extension or shortening would conflict with a provision of another enactment setting down a time limit; (b) ….” 18. Rule 8 of the FTT Rules relates to the striking out of a party’s case and provides, so far as material, as follows: “(3) The Tribunal may strike out the whole or a part of the proceedings if … (c) the Tribunal considers there is no reasonable prospect of the appellant’s case, or part of it, succeeding.” 19. Rule 20 of the FTT Rules provides: “(1) A person making or notifying an appeal to the Tribunal under any enactment must start proceedings by sending or delivering a notice of appeal to the Tribunal. … (4) If the notice of appeal is provided after the end of any period specified in an enactment referred to in paragraph (1) but the enactment provides that an appeal may be made or notified after that period with the permission of the Tribunal - (a) the notice of appeal must include a request for such permission and the reason why the notice of appeal was not provided in time; and (b) unless the Tribunal gives such permission, the Tribunal must not admit the appeal.” 20. Regulation 37 of theVAT Regulations 1995 (SI 1995/2518) provides as follows: “Any claim under section 80 of the Act shall be made in writing to the Commissioners and shall, by reference to such documentary evidence as is in the possession of the claimant, state the amount of the claim and the method by which that amount was calculated.”