What would happen if the store you bought it from went under?
You couldn't return it to them - so you should just claim that, _and_ that you don't have a receipt.
Since all Legend RAM would go back to the same place anyway, I don't see what difference it makes.
Lifetime Warranty Power!
Put your excessive student spare time to some good use and argue with those m0f0s
Its all about replacing that RAM y0 - don't let it talk to you like that! :P