First National Bank (FNB) advanced a loan to Clear Creek Trading 12 (Pty) Ltd, a juristic person, secured by a mortgage bond. The second respondent bound himself as surety. After Clear Creek breached the agreement, FNB sued for foreclosure and enforcement of the suretyship. Clear Creek’s sole defence was that the loan agreement was unlawful because it allegedly contravened provisions of the National Credit Act 34 of 2005 (NCA), specifically ss 90(2)(a)(ii) and 81(2)–(3). Although the NCA would not ordinarily apply to such a mortgage agreement with a juristic person, the written agreement contained clauses stating that it was governed by the NCA and referred extensively to its provisions. At the start of the trial, the parties informally agreed that the question whether the NCA applied should be determined as a separated issue under Rule 33(4). The High Court held that the NCA applied. FNB appealed to the Supreme Court of Appeal.