Credits.init() Error

I get an error with credits.init() when I add a test id parameter…

[lua]creditsListener = function()
–code
end
credits.init( “myAppId”, 1001,creditsListener )[/lua]
The error message is

 ERROR: credits.init() requires a listener as the last argument.  

Is my usage wrong? [import]uid: 64174 topic_id: 18754 reply_id: 318754[/import]

anyone? [import]uid: 64174 topic_id: 18754 reply_id: 72174[/import]

Anyone with a solution for this?
Apart from no test id’s I do not get any offers! just the option to buy virtual currency! [import]uid: 64174 topic_id: 18754 reply_id: 72396[/import]