Hmmmm....after Mr. HG sold his old house, right before we got married, his son still used that address as his own. We used to get things for him forwarded from there. Also, every creditor and court was trying to find him at our new address because Mr. HG had his mail forwarded from there. Sadly for us, my A stepson is a "Jr." Needless to say, Mr. HG eventually got served by some process server. It took us a loooooonnnnnggggg time before we got all that straightened out! Things have been quiet for several months, and we are hoping it stays that way.
Needless to say, my recommendation to you would be exactly what cynical said....get thee to the post office and correct that little issue as soon as possible!
Hugs, HG