How to purchase an article/eBook/chapter if credit card transaction gets failed

1. While making payment via "VISA" or "MasterCard", if the system declines a transaction, you can immediately send us an email at support@benthamscience.net. Our support department will respond you within 24 hrs.
2. Right now, we are accepting only "VISA" and "MasterCard" but in future we will be offering other cards also. In the meanwhile, you can send us an email at support@benthamscience.net if you have cards other than "VISA" and "MasterCard" card.