Dear Sir,
Please let me know why are you targetting only Newspapers, however you may sell pictures to any of the users.
Values of the credits should be settle into the intitial stage to set up payment accordingly. Also, please let me know is there is any process to return the credit if bought once.
I have 11 years of expereince in development og Wordpress/Woocomerce websites and have a number of questions too, to make project pretty much clear.
Waiting to hear you for discussing thid project further.
Thanks,
Deepak