Was approached by OAF directly by one of their employees to ask if I would be interested in applying. After an initial phone screening, they asked me to complete a full application, which included a submission of tools I had used in a previous company. I was then asked to go through to the second stage, which was a two part written exercise, which should be completed in four hours and included the development of management tools. I believe I gave all the right answers to the exercises and submitted within the required 7 days. After a few days, I received an email saying the hiring manager wanted my answers to be more actionable. This is very puzzling to me because all the answers I gave were actionable. Therefore, I asked if they could give me examples of what actions they wanted? The reply I received was still very vague and simply repeated the previous excuse - they wanted more actionable answers. Afterwards, I suspected this was simply a phishing exercise and all they wanted was candidates to create tools for them. If this was the case, then it's a very unethical tactic by a company that inspires to do good.