Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective product and poor customer service

This tea set came defective. One of the tea cups were chipped, painted, then chipped with rust exposed on the iron. I did not even touch the rest of the set and went to return it immediately. The quality was poor, and I do not trust it. When I requested to return the tea set, the seller would not pay for return shipping, but Amazon stepped in and gave me shipping credit. Now the seller has not even credited the full amount back to me. I will be cautious not to buy from this seller again.