I'm sorry you're having difficulties with Autotune?. Are there errors in the Facebook App tab that need to be corrected? I'd suggest correcting those first and then making sure you click the 'Save Custom Settings' button after you set the namespace. If you choose 'Save All Recommendations', it'll throw away what you just wrote and use what is suggested instead.The only thing I notice is namespace keeps getting blanked out. It isn't clear what is going on.
Make sure you follow our Twitter Application Setup Guide to set up the Twitter Application correctly. If you're having a specific error, please let us know more details and we'd be glad to help.I'm also have Twitter approval issues.
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