Call them right away; it's partly a timing issue. My personal experience is that it can be subjective. It's annoying but I understand the retailer's position. It is amazing what people try to return.

I'm not sure what exactly you are concerned about, but if you aren't sure, I'd ask in the help/chat section on ebay or even have them call you to discuss. You may not necessarily be instructed to send the item back to the same place it shipped from. If you are dealing with a larger company, they sometimes have return warehouse locations. Since you will probably have to pay the shipping and restocking fee, just make sure it's still financially best for you to return it.

I suggest you get out your receipts and read the return policy that is usually printed on them. Most major retailers, including the big boxes, have a 90 day limit on returns, and anything after that, even with a receipt, is at the manager's discretion---and only at the lowest price that the merchandise sold for. If you bought a great facuet for $200, and waited 6 months to return it, and that faucet was now marked down to $100, that's all you would get (in store credit) even if you had a receipt--if they decided to return it at all. 90 days is all they promise. If the merchandise has a manufacturer's warranty, any service under than warranty would be through contacting the manufacturer. Some retailers have an even more limiting return policy, such as 30 days. All will impose some type of restocking fee IF they accept returns on any special order merchandise---and that would be if it was returned during the 90 days. Appliance manufacturer's warranties begin on the date of delivery and run for one year. If the installation occurs after the delivery date, some will honor that date as the beginning of the warranty period, some will not. But, the burden of proof would be on you to prove that the appliances were not installed until a later date (receipt from licensed plumber for a DW install, etc.). Putting the "excess" merchandise on Craig's List or Ebay would be an alternative to get some of your money back should the issue arise.

You need to contact the vendor directly. This is a discussion forum.