<prompt> Translate the following text to EnglishKwa njia ya shirika hili, makampuni matatu yalijitolea kushiriki katika utafiti wetu na kutupa habari juu ya mbinu walizotumia na kuiona kuwa na ufanisi katika kupunguza malipo yasiyofaa.  <response>: Through this organization, three companies volunteered to participate in our study and supplied us with information on the techniques they used and considered effective in reducing improper payments. 