Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst customer support

I have owned this product for about 6 months. Sorry, but I'm a human so I threw away the receipt long ago. The plastic part of the cutting assembly cracked during use (I don't recall ever putting anything too heavy or hard in it). Regardless of the online product registration, and regardless of the "3 year warranty", customer support tells me that I need the receipt to replace the part. Not only that, they want me to SCAN it.I'm never buying anything from Cuisinart again. I'll go buy another blender brand, thank you.