Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Warranty
Document: I haven't had this pan very long, but so far, I am very happy with it. I'm impressed with the 25-year warranty on the non-stick surface, although I only use plastic or nylon utensils. It also washes up very nicely, and the food really doesn't stick.
the only grip is that we wish it could be 2 inches deeper, as per traditional wok. hence you can toss and stir fry like in a traditional wok, but we are living with it as it as the food is not sticking/burning and the cleaning is a dream. Note that there is a 25 years warranty on this product so scan a copy of this invoice, note down the address that is attached to the wok and save it in your email box!
Update(June 2012):  hmm, not happy with it, the non stick became sticky. The coating obviously didn't last long. Decided it would be a waste of time to test the warranty as I don't want the same wok with the same problem. So I now have a ceramic coated wok.Original review:Almost a five star. The finish of the wok is truely high class, compared with a lot of the 'non'stick' varieties out there.
We bought this wok 1 year ago. Recently, it became very sticky with normal use. So we tried to return it for warranty since it has 25 year of warranties. It turns out its warranty return address is bogus. The address listed is Joyce Chen Products, Customer Services, 6 Fortune Drive, Billerica, MA 01821. It doesn't accept warranty returns.Avoid this product!! Not worth the money for such a poor quality product and NO CUSTOMER SERVICES.
why this amount of passion? we love cooking with a wok, but our recent wok, a non-stick, and despite the seasoning - it just did not work. With a lot of claims on the non-stick material peeling off and the danger it poses to our health. We finally buckled as the cleaning and the sticking on the non-stick wok was just taking the enjoyment out of cooking. I think you have to bash this wok around before feeling happens.
etc. and the lastthing I want is metal, stinking, rusting, exposed to your next dish.Now the best wok cooks, can get it done (the cleaning) but I found, the burned on is justannoying with steel woks.This walk alleviates that, and the burning (or deep browning, of your stir fry vegetables) at the edges,is not only possible, its easy with this pan!Get yourself a flat wood paddle, to scrape the sides down and stir-fry away ! !
We just decided to get another one just in case they stop making these at some point then we would like a back up.I think the best thing about this pan other than how even it heats is how easy it cleans up. Two thumbs up from this guy!! !...and my wife.
Unfortunately, a lid isn't included with this pan. I bought the 12" version of "Farberware Cookware Glass Replacement Lid". It fits perfectly, and the cost is reasonable.Capacity: the pan doesn't hold a huge amount - when filled to the rim, it holds about 3 quarts. 2 quarts will bring the level to 1" below the rim.It isn't often one finds a nonstick pan that works on induction stoves, but this one does.
This was purchased because of the size. We have used it several times since we got it. We love it.
This stove-top wok by Joyce Chen is just an excellent product - quality through and through. Couldn't be happier, so in addition to my own, I bought one each for my two daughters.
Answer: Please keep in mind that I am an end user and not the manufacturer.  That being said, my response may actually be of more value to you.Considering the price, I didn't even spend time researching the manufacturer warranty.  I know that if something is not right, Amazon will take an item back at no charge.  I speak with experience and they always make the seller correct a problem or accept a return.I've had this wok for around one year and use it several times per week and it shows no sign of wear.  Considering what we paid for it, I will use it until there is wear or damage and then I plan to order an exact replacement.  I own fry pans that cost over $200 and I did research the warranties and plan to enforce their lifetime warranty, but for something like this, I will just use it and replace it as needed.Hope this helps!