Bearblock I haven't had the chance to test it, but seeing what happens with physical promo codes, with digital promo codes I don't think there will be any problem.
Arata Oh I'm sorry, sure, write from here to contact the customer service, explain that finally you didn't receive any rewards, and they will take care of giving you a solution. Remember if you do it by email you must write from the same email with which you have your LEGO account, so they can verify that you are the owner of the account.