Chartered Systems Integration (Pvt) Ltd v Zimbabwe Revenue Authority

Chartered Systems Integration (Pvt) Ltd (plaintiff) claimed $5,348,087.75 from the Zimbabwe Revenue Authority (ZIMRA/defendant) for developing, implementing and integrating a Zimbabwe Revenue Authority Online Payment System (ZOPS) in various banks. Plaintiff alleged it rendered services pursuant to a 'tacit contract' commencing in 2011. According to plaintiff, ZIMRA's IT Director, Mr Tjiyapo Velempini, verbally instructed plaintiff to develop a proof of concept for ZOPS with several banks, with a promise that a written contract would be signed upon success. Plaintiff claimed the proof of concept succeeded and it was verbally instructed to implement the system fully. Plaintiff alleged Mr Velempini demanded a 25% equity stake as a bribe and when refused, stopped the contract process. Despite this, plaintiff continued implementing ZOPS, connecting 14 additional banks. When plaintiff threatened to terminate, ZIMRA officials allegedly threatened litigation for sabotage of national infrastructure. No written contract was ever signed, no formal procurement process was followed, and ZIMRA never paid. ZIMRA denied the contract's existence, pleaded that it had a contract with Microsoft (which subcontracted plaintiff for a different project from 2008-2010), argued any alleged contract was illegal due to non-compliance with the Revenue Authority Act and Procurement Act, and raised a special plea of prescription.

• Whether a valid tacit contract existed between plaintiff and defendant
• Whether non-compliance with statutory procurement procedures rendered any alleged contract illegal and unenforceable
• Whether the defendant was unjustly enriched by plaintiff's services
• Whether plaintiff's claim had prescribed
• Whether absolution from the instance should be granted at the close of plaintiff's case

The defendant's application for absolution from the instance at the close of plaintiff's case was granted with costs on the ordinary scale (not the punitive scale requested by defendant).

A contract between a state entity and a private party that is concluded without compliance with mandatory statutory procurement procedures is void ab initio and unenforceable, regardless of whether services were actually rendered. State entities as creatures of statute can only validly contract through their properly constituted organs (Board) acting within the parameters prescribed by enabling legislation. Courts must interpret and apply the law in a manner that advances constitutional objectives of transparency, accountability and probity in public procurement. A tacit contract cannot be inferred where the alleged agreement was tainted by corruption and circumvented mandatory legislative requirements. The conduct of unauthorized individuals cannot bind a state entity to contractual obligations.

The court observed that recognizing such arrangements would open floodgates to corrupt procurement practices where service providers could render services in collusion with insiders, bypass competitive processes, and then claim payment based on unjust enrichment. The court noted that the online payment system benefited taxpayers and banks' clients equally, and questioned why ZIMRA should bear sole responsibility for payment when banks had contracted separately with plaintiff. The court commented on pleading irregularities, noting that estoppel cannot found a cause of action and that introducing alternative claims in replication rather than amended pleadings was unusual, though it proceeded as parties consented. The court noted that had the prescription issue been set down separately, defendant would have had to lead evidence first to establish the date of inception of prescription, per the Supreme Court decision in Brooker v Mudhanda SC 5/18. The court declined punitive costs despite finding for defendant, recognizing the case raised important legal issues beneficial to jurisprudence.

This case is significant in South African and Zimbabwean jurisprudence for establishing that courts will not enforce contracts with state entities that circumvent mandatory statutory procurement procedures, even if services were actually rendered. It reinforces constitutional values of transparency, accountability and probity in public procurement. The judgment clarifies that state entities as creatures of statute can only contract through properly authorized organs (the Board) and that individuals cannot bind state entities through unauthorized dealings, particularly where corruption is involved. The case demonstrates judicial commitment to upholding the rule of law over pragmatic considerations of unjust enrichment. It serves as a strong deterrent against private parties colluding with rogue state officials to bypass competitive procurement processes. The judgment also clarifies important procedural points about pleading alternative causes of action and the operation of special pleas of prescription.