FIANKUMA v. COBBINA AND ANOTHER Auction sale—Setting aside—Jurisdiction—Material irregularity—Writ or motion—Auction sale of building of plaintiff judgment debtor—Plaintiff claiming to own enough movables to satisfy judgment debt—Plaintiff issuing fresh writ to set aside sale—Whether procedure proper—High Court (Civil Procedure) Rules, 1954 (L.N. 140A), Order 51, r.18