Instruct: Classify the given Amazon review into its appropriate rating category
Query: Nothing good yet

When I received the bulb and installed it I discovered that it didn't work right out of the box. I immediately started a return on Amazon, and shipped the defective bulb back on the 29th of December via UPS. I have heard nothing from this company so I left feedback asking for an update, but they have not replied. It's now been 10 days since I sent back the defective bulb and I have not received a refund nor has the company replied to me. To say that I'm disappointed is an understatement, especially since this company has so many positive reviews.