we need script to implement sofort.com payment facility into A2Billing.
after it install user can from interface during payment will redirect to sofort.com hosted payment page and complete transaction there
then if payment get success user account has been charged directly with the purchased amount.
we need it be automatic script to use it in the future.
programmer should know about A2billing and a2billing payment methods + Sofort.com API.
sofort.com account is active and ready to use.