The court commented that even if incorporation by reference of the master rental agreement's terms into subsequent rental agreements had occurred (as argued by respondent's counsel), this could not validate those agreements in Katlego's hands after it had divested itself of all rights in the master rental agreement. What would be required is a re-cession of rights from the cessionary (appellant) back to Katlego, for which there was no evidence. The court also noted that it is the role of the court, not witnesses, to interpret documents (citing Novartis SA (Pty) Ltd v Maphil Trading (Pty) Ltd), making the witness's views on the interpretation and effect of the cession agreement irrelevant. The court did not need to decide whether courts retain residual discretion to refuse enforcement of attorney and client cost clauses in certain circumstances, as no grounds existed to deprive the successful party of such costs.