The first appellant owned immovable property (Stand No. 230 Vainona Township) registered under deed of transfer number 9140/2003. Following a judgment in case HC 4968/13 on 29 May 2014 ordering the appellants to pay NMB Bank Limited US$131,411.42 plus interest and costs, the property was declared executable. The Sheriff sold the property by public auction on 24 July 2015 to the third respondent (agent for the fourth respondent/purchaser) for US$120,000. The Sheriff declared the third respondent the purchaser on 29 July 2015 in terms of Rule 356 of the High Court Rules, 1971. On 17 August 2015, the appellants sent a letter of objection to the Sheriff (copied to the auctioneer and purchaser but not the bank until 2 October 2015), attaching a valuation showing the property's open market value of US$265,000 and forced sale value of US$175,000. Also on 17 August 2015, the Sheriff wrote to the auctioneers directing sale by private treaty for 90 days. However, following a hearing on 13 October 2015 where the appellants' counsel conceded their letter did not constitute a valid objection under Rule 359(2) and (3), the Sheriff confirmed the sale on 16 October 2015. The appellants initially filed a Rule 359(8) application (HC 11139/15) to set aside the confirmation but withdrew it on 19 November 2018 after 3 years. They then filed a fresh application under section 14 of the High Court Act on 6 December 2018 seeking a declaratory order setting aside the sale. By this time, the fourth respondent had taken transfer and made substantial improvements to the property.