Bad customer service

<p>So i bought a pack of my favourite sweet from woolworths at southwons. After opening and eating some a couple of the sweets tasted like coffee (which i cant stand). I just sent a email to the customer care on the back of the pack and after 2 days I still didnt hear anything from them so i rep**** again and threatened them,then they rep**** and said they are sorry and I will receive a R50 gift voucher. Well its a week later and I still dont have anything and I emailed them again to ask for a reply and still waiting. I wish someone high up in Woolworths can just please get back to me</p>