Long story short... this is the best online seller I have ever seen with regards to customer satisfaction.
I found an issue with the item purchased from MeritLine.com. They sent me a replacement as soon as I reported this issue to them. They didn't even ask me to send the original item back first. Later on we decide not to keep it. They issue a full refund immediately after we told them we want to return.
I would recommend this online seller as they try hard to satisfy customers.