Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrible customer service!

I bought this item for the pool I purchased last year but when setting it up, it had a leak so I no longer needed the saltwater system. I contacted the seller to get a return authorization response within the 30 day window. They never responded until I filed an amazon claim. Then they finally responded and were not helpful and never emailed me back after my 2nd reply. I have filed another amazon claim and will update later. They are not good about responding to customer problems, etc so hopefully if you buy the product it works well because dealing with this seller is a hassle.