reporter: hoping to make their children's christmas special, robin aers and her husband headed out the the wal-mart in their shopping. >> we were standing in line and i was just talking to my husband about how it was kind of hard having the two and that was glad they had lay away available. reporter: last saturday robin headed over to the store to make a payment on the items. >> wasn't expecting to pick it up, i was just going to put a payment on there and go back next week to get it. and the guy there told me that the balance was significantly lower than what i thought, and i said are you sure about that? and he looked at and it said no, you only owe like $130. i thought it was like a $300 bill. reporter: so she paid the home, where she was surprised to find a note inside one of the boxes. >> it said have a merry christmas, may your family be blessed, god is always watching, and have a very merry christmas. and she made $150 on our children's gifts. and it was huge. and i cried right there, you know, i was just so excited and so happy that my boyss can get a good christmas. >> i feel