Hey @creativedesign,
After further investigation, we found that this would need to be figured out on your end. You'll need to reach out to a partner since you manage the integration and may have decryption methods on your end. If the you (the merchant) is in production and not only in Sandbox, you can provide your API Key to me via emailing developer@visa.com and forward to us for further review.
Thanks,
Diana
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