The plaintiff manufactured and delivered 1,500 army rucksack bags to the defendant in three batches (500 bags each) on 3 May 2013, 6 May 2013, and 21 May 2013, for a contract price of US$64,000 payable upon delivery. The defendant paid US$5,500 and indicated the balance would be paid by mid-June 2013. On 10 September 2013, the defendant executed an acknowledgement of debt undertaking to pay the balance of US$58,500 by 30 September 2013. On the same date, defendant wrote a letter confirming payment by 30 September 2013. The defendant subsequently requested an extension to 3 October 2013, and ultimately the plaintiff gave the defendant until 31 December 2013 to pay. No payment was made, and the plaintiff instituted action claiming the balance due. The defendant had subcontracted the work from the Zimbabwe National Army and claimed non-payment as her reason for not paying the plaintiff.