Here’s a few reasons why it may fail:

• Your IP address must be located in the United States for our card processor to allow transaction. If you are using a VPN, either disable it or change location to anywhere in the US.
• Your bank blocked the transaction for fraud risk purposes. I know they all say this but, we are definitely not fraud. Just call your bank and ask them to allow the transaction, as it is you making the purchase. 
• We only ship within the United States at this time. If you order was for delivery outside of the US, it will fail.
• Your card information was entered incorrectly. Please double check that the numbers are correct and your billing address is accurate. 
• If you’re still experiencing difficulties, you can try another payment method or reach out to us at info@seedsandclones.com