A person on whom a notice under section 215 is served, or any other person having an interest in the land to which the notice relates, may, at any time within the period specified in the notice as the period at the end of which it is to take effect, appeal against the notice on any of the following grounds—
Any appeal under this section shall be made—
to a magistrates' court . . .
Where such an appeal is brought, the notice to which it relates shall be of no effect pending the final determination or withdrawal of the appeal.
On such an appeal the Welsh Ministers or (as the case may be) the magistrates' court may correct any informality, defect or error in the notice if satisfied that the informality, defect or error is not material.
On the determination of such an appeal the Welsh Ministers or (as the case may be) the magistrates' court shall give directions for giving effect to their determination, including, where appropriate, directions for quashing the notice or for varying the terms of the notice in favour of the appellant.
Where any person has appealed ... under this section against a notice, neither that person nor any other shall be entitled, in any other proceedings instituted after the making of the appeal, to claim that the notice was not duly served on the person who appealed.
The Welsh Ministers may by regulations make provision, in respect of appeals made to them under this section—