I haven't received mine yet, either, but not worried about it. Those guys are always swamped during these types of sales and, from the sound of things, all the resellers were caught a little off guard due to Waves not providing them details of the sale and the vouchers until the last minute. So, my advice is to just be patient - it may take hours or maybe even a day or so, but AD/Waves will come through.
update: got my license from AudioDeluxe a few hours after placing the order.