Instruct: Classify Amazon reviews into positive or negative sentiment
Query: didn't get the product nor any response from the vendor. terrible service!

I ordered the product in advance as needed it till a specific date. the product didn't arrive within few weeks and when i tried to contact the vendor there was no response. after few weeks of waiting i had to cancel the order.i have not heard from the vendor till today and i'm very disappointed from this low level of service.