Diagnosing and fixing a failed payment.
First: check whether you were charged
Look at your bank or card statement.
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Not charged — nothing has happened. Try again.
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Charged but the order didn't complete — don't pay again. Contact support with the order reference and your bank's transaction detail.
Common causes
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Card declined by your bank. Frequently a fraud block on an unfamiliar merchant. Your bank can authorise it.
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Insufficient funds.
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Online payments not enabled. Some Thai debit cards need online or international payments switched on in your banking app.
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Session timed out. Payment pages expire. Start again.
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3-D Secure not completed. Cards often require an OTP or app confirmation — if that step is missed, payment fails.
Trying again
Return to the order and pay again. You can choose a different method.
Pending charges that vanish
Some banks show a pending authorisation on a failed payment which drops off after a few days. That's your bank's process, not a charge from HOLO.
Still stuck?
Contact support with the order reference, the payment method, roughly when you tried, and what your bank shows.