I apologize for the trouble, I'm not sure what the problem is. If you duplicate this again, please go ahead and send a bug report, even if you don't see the Purchase Log file. I have loaded this as a bug in our system, and we'll try and get it resolved. FYI, we are still seeing a lot of iOS subscriptions coming through, so whatever this error is it's not affecting every device.
Until we get this fixed, you can either call us, 888-200-5129, or go to our online store: https://www.iflygps.com/Store/subscriptions to purchase a data subscription.
Thanks!
Walter