Smelly milk tart

Hi, <br> I bought a milk tart at checkers Westgate mall yesterday. <br> When I arrived home and served the milk tart to my guest I discovered the milk tart smells like burnt milk.<br> One of my guests actually tasted a piece and was nauseous afterwards. <br> I returned this milk tart to the store today and did not even get any acknowledgement or a sincere apology.<br> The lady at customer service did not even ask me why I was returning the goods.<br> I will not be setting my foot in that store again.