I exchanged Aussie for $3000 USD and only found ou...

I exchanged Aussie for $3000 USD and only found out overseas that about 7 X $100 notes from the 90s were inserted in the bundle. This caused me great trouble as the country I was in wouldn't accept old US notes. I had to find exchange person and sell it to him at 50% less rate just to get rid of it. Be advised and double check the notes before leaving this place.