Thanks for reaching out in our Community forums and sharing your concern. I’m happy to help out.
This is a common issue that likely has to do with how your payment processor was set up, or with the payment method that was used. You can take a closer look by reviewing the abandoned order to
determine why the order was not processed. You can review the payment events by navigating to Orders > Abandoned Orders and selecting an order. Feel free to share more information about this here and I'd be happy to point you in the right direction.
Since you're using a third-party payment provider, have you tried to reach out to them directly for more insight? They may be able to determine the processing issue from their end.
It also seems like you're still in the process of setting up your store, I suggest viewing The General Checklist as it’s great tool that will ensure that you have your Shopify store all set up. You can go through the check list and be confident that you have a finished product, that includes having your media, shipping and check out all in working order.
Let me know how it goes!
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