Hm.. it was just the lens delivered. I could imagine that they might be so nice to help out with the warranty on a goodwill basis if you are the original buyer, but I am not sure if they have a legal obligation to do that since it was basically a gift? Good question..Quite some of those lenses are already appearing on marketplaces like ebay and the price battle seems to be starting. Currently looking at a brand new 17mm Pro for 700€ from that promotion.
Does anybody know how warranty is handled? Usually Olympus requests a proof of purchase copy when you want to make warranty claims, on MyOlympus you can actually upload those copies when you register a product. Does Olympus supply any proof of purchase with the promotion lenses?