I noticed the same thing and was unable to cash out it just kept saying check your neteller number. When i would it didnt match, so i have called 3 days in a row, and the payment processor manager says they are having tech difficulties. Which should be resolved in 48 hrs. He said...
you can either call and process over the phone. just make them verify your last 4 digits of you neteller account.
or
send an email to
affiliates@partypartners.com and request cash out include your screen name and last 4 digits of your neteller account.
It took them 8 hours to process the request but it is a work around for the problem for now.
Hope this helps it was for me!