Instruct: Classify Amazon reviews into positive or negative sentiment
Query: c50 DOES NOT LAST FOR 96 HOURS!!!

Please note the ice packs no longer uses the thicker fluid to freeze (after two meals my cat was unable to eat the third and got sick).Upon contacting the company regarding this item I was advised most people don't use it for this length of time.I asked that they do something about their marketing as many people will presume their pets are safe using this item and they're obviously not. I will update if/when I hear further.