7.—(1) If the claim does not state grounds of claim which a convener considers sufficient to enable the responsible body to respond to it, the convener shall direct the claimant to send further and better particulars of the grounds of claim to the Secretary within 10 working days of the receipt of notice of such direction by the claimant in accordance with rule 50.
(2) Rules 15 and 17 shall apply to a direction under paragraph (1).
(3) Further and better particulars of the grounds of claim sent in response to a direction made under paragraph (1) shall, if a convener is satisfied that, together with the claim, such particulars should be sufficient to enable the responsible body to respond to it, be treated as part of the claim.
(4) Where a convener has made a direction under paragraph (1), a copy of that direction shall be sent to the responsible body with confirmation that the case statement period will not commence until the direction has been complied with.