Walmer Insurance Brokers was appointed by Imatu (a trade union) in February 1989 as in-house broker for Imatu's short-term group insurance scheme for its approximately 1000 municipal employee members. The scheme had been established by Imatu some 30 years prior. Riddle, the sole member of Walmer, resigned from Shield Insurance to take up this position. Walmer operated from Imatu's offices, sharing expenses, and received member information from Imatu to canvass participation. Imatu collected premiums through salary deductions and paid them to Walmer after deducting its own commissions (8% plus VAT, plus R4 per member per month, plus 2.5% on Sasria premiums, plus 60% of bonuses if loss ratios stayed below 65%). In February 2001, disputes arose when Imatu sought to renew the contract with new terms requiring Walmer to provide member lists upon termination and sign a two-year restraint. Riddle refused, and Imatu terminated the contract effective 1 April 2001. Subsequently, Imatu discovered that Walmer/Riddle was canvassing Imatu scheme members to switch to another scheme and using scheme information to promote a competing scheme.