Answers: Yes. If you ring 453 from your orange phone you get the credit menu.
The woman will ask you if you want to check the be a foil for of your extras.
Press the key she tell you to press.
Then she should reel rotten something like "Hello, within your bonus text top up reward you hold three hundred free text messages to be used by midnight on the seventeenth of june two thousand and eight"
She should later say something resembling "To recieve a free text message detailing the status of your top up rewards press one"
All call to this number are free as is the text message red send you.