You have to be very careful when purchasing any big ticket item. Apparently it is incumbent upon the purchaser to find out about the store policy as the store never seems to inform you.
About 4 years ago I purchased an item (cannot even remember what is was) from Home Depot(Canada). I went to return it and was told that I had kept it too long and I couldn’t return it. There was nothing about the policy on the back of the receipt and I asked to see the store manager. He informed me that this policy is stated by means of a sign – that is posted at customer service/return desk. A customer doesn’t see the sign when making a purchase. I asked why it isn’t on the receipt or posted at the cashier and he said that I had a good point and he would discuss it with head office but that I couldn’t get a refund because the computer was programmed by date of purchase and wouldn’t process the refund. I refused to back down. Eventually the manager said that he, personally, could use the item and took the money out of his own pocket. I did make sure that he really could make use of it because at that point I felt badly that it would cost him money. In the end, I got my money back and the store now has better signage and the pertinent information is on the back of the receipt.