The plaintiff (National Railways of Zimbabwe Contributory Pension Fund) was the lessor of shop number 55, Bulawayo Centre, which was leased to the first defendant under a lease agreement concluded on 21 June 2010. An addendum to the lease agreement was signed on 12 June 2015, effective from 1 July 2014, setting rentals at US$653 and requiring the defendants to pay an attributable share of 0.92% of total maintenance and operating costs, as well as electricity, water charges, owners charges, and VAT on a pro rata basis. The plaintiff issued summons claiming arrear rentals of US$10,568.86 and operating costs of US$58.74, seeking cancellation of the lease agreement, eviction of the defendant, and holding over damages. The defendants pleaded that there was another pending case (HC 1939/14) involving the same cause of action (lis pendens), that no amounts were due, and that they had in fact overpaid the plaintiff. The plaintiff's evidence showed an irregular payment pattern by defendants dating back to April 2010, but the plaintiff could not produce source documents to prove operating costs beyond the last six months ending May 2018.