Why have I not gotten cash back on my healthy food

I am a Discovery Vitality member with a HealthyFoods card. A few months ago, I called in to ask why I am not receiving cash back, and I was told that it takes time to accumulate. I was not told anything else by the call centre agent.<br> <br> I have not received any Discovery Healthy Food cash back for months, despite doing multiple purchases and swiping my healthy food card and paying with my discovery credit card (which I got in September 2014).<br> <br> My wife phoned the Discovery Vitality call centre again on my behalf today, and I was told that the healthy food card was \deactivated"when I got a Discovery credit card. I was not informed about this alleged deactivation when I got the discovery credit card. Regardless these purchases were made with both a Discovery Credit Card"