If the system blocked the transaction automatically, make sure you using your own payment data and not your relatives or family. Are you certain that the data you have supplied was valid and free of any typing mistakes? Make sure you are not using any anonymous proxies while making the payment. Blocking cookie files may cause problems. Also make sure that no one has hijacked your credit card information. Sometimes the default billing location is set to the United Kingdom – make sure you have selected your own country.
Additionally, remember to always file consistent information. Therefore your email addresses, your home address should be the same throughout the order and consistent with the data regarding your IP address, bank accounts and payment operators etc. Your paypal or other payer accounts should be verified and the payer address confirmed with the payment operator. Keep your orders moderate – a large number of products in one order, especially if it is the very first one ever made, can be a potential problem for the system. Also the physical distance between you and your banking operator can increase the risk of refusal. Naturally you will be fully refunded for a rejected transaction. The exact pace of the refund transfer rests outside our jurisdiction or influence.