when you send a bubble to the us,, you not need to put a return postage from your country,,,,,it`s no good here ,,,we have to pay for us postage for the return,,,,,,,if you want to pay for postage ,,add a couple bucks in the bubble ,,other wise your wasting your money,,,,,hope this helps,,,,rob
I get foreign currency all the time, I give it to my kids to collect. I figure it is worth the joy on their face to go down and put a buck or two on the return bubble.