Well, I seriously doubt any person still has the product to return and if they did they won't hassle over the few dollars it probably cost.

I think the retailer is perfect here, they are not to blame and seriously doubt they knew anything of it, I don't think they need to go "above and beyond" and try to even get a hold of anyone that bought the product and tell them they can get their money back. If it was a $100 or more item then maybe so.

Now, the manufacturer has some things to do, that is for sure.