On 17 August 2018, the parties entered into a loan agreement effective 30 October 2018. The appellant, a registered money lender in Zimbabwe, granted the respondent, a Zimbabwean national living in the diaspora, a loan of US$450,000 to purchase immovable property in Harare. The property was mortgaged as security. The loan was to be repaid by 30 September 2033 with variable interest at 10% per annum calculated on the outstanding balance expressed in United States dollars. The loan was disbursed in two tranches: US$5,685.85 on 13 September 2018 in US dollars, and US$444,341.15 on 16 November 2018 in RTGS dollars at a one-to-one rate. Following the promulgation of S.I. 33/2019 on 22 February 2019 (later incorporated into the Finance (No. 2) Act, 2019), which converted USD-denominated assets and liabilities to RTGS dollars at a one-to-one rate, a dispute arose as to whether the loan should be repaid in US dollars or RTGS dollars. The respondent applied to the High Court for a declaration that payment in RTGS dollars constituted full settlement. The High Court granted the declaratur on 8 September 2020. The appellant appealed.