Just out of curiosity... could your problem be the missing page listed on your join form?:
https://secure.zombaio.com/?287654747.1461912.ZOM
"Zombaio.com (CFG AB), the merchant of record, is the payment processor, authorized distributor, merchant and access management provider for ESIO Media Club Ltd -
http://www.naughtynerdy.com/warning.html "
http://www.naughtynerdy.com/warning.html does not exist.
Solution: Make a copy of your index page, upload it to warning.html.