This section applies if notice of appeal has been given to HMRC.
The appellant may notify the appeal to the tribunal.
If the appellant notifies the appeal to the tribunal, the tribunal is to decide the matter in question.
Subsections (2) and (3) do not apply in a case where—
In a case falling within subsection (4)(a) or (b), the appellant may notify the appeal to the tribunal, but only if permitted to do so by section 223G or 223H.