Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 2 locks out of 4 no longer open after one year

I purchased 4 Samsonite Travel Sentry 4-dial Combo locks because of the Samsonite name. After using three of them less than 5 times, two will no longer open. I am thankful that they did not break while I had my suitcase full and locked because by calling customer service, they advised me that the only way to open the lock was to bring the suitcase down to TSA so they could unlock it. I am sure TSA will be delighted to help. If I had reached my destination and been unable to get to my clothing, my vacation would have been affected negatively.