If you still have the receipt for when you purchased the Moneypak and it shows that you paid cash for it then you might be willing to find someone who will trade with you on the #bitcoin-otc marketplace.
- http://www.bitcoin-otc.com
- http://webchat.freenode.net/?channels=#bitcoin-otc-foyer
There's a little legwork involved to use that for trading as you need to set up GPG first, then register your GPG key with the #bitcoin-otc bot gribble which lets you authenticate and use the #bitcoin-otc IRC channel.