In applications for condonation and extension of time, where a litigant has pursued incorrect legal remedies on the advice of legal practitioners resulting in inordinate delay, the court must assess all relevant factors cumulatively (length of delay, reasons for delay, prospects of success, prejudice, and need for finality). Strong prospects of success on the merits of the intended application can compensate for inadequate explanations for delay and lengthy non-compliance with procedural rules. The sins of legal practitioners should not automatically be visited upon their lay clients, particularly where the client reasonably relied on professional advice, the practitioners have since withdrawn, and the client has genuine prospects of success. The overriding consideration is fairness to both parties and the interests of justice in allowing matters of substance to be determined on their merits.