As there are many reasons why payment could fail, it would be best to contact our sales team at sales@onlydomains.com or join our live chat where we would happily help you submit your order.
If this is urgent, please join us on our live chat or give us a call at the number located closest to your location:
https://www.onlydomains.com/about-us/contact-us
Attention: Our Sales Team is unable to take payment or card information over the phone or chat for your security.