Hello there, sodadoc.
I appreciate sharing with us your experience when reaching out to our support team. Please know your voice is important because it guides us on what areas we need to enhance (product and support).
Once your documents are received, you can expect an email confirmation in 1-2 business days. Since you haven’t received any responses, I recommend you get in touch with our QuickBooks Payments Team.
One of our agents will gather sensitive information to verify the account. Once done, they’ll be able to trace what happened to the chargeback and explain in detail how to resolve the issue. To get the contact information, check out this link: Contact Payments Support.
For additional information, see the following article. It provides an overview of how to manage a chargeback as well as the time frame for the card issuer to reach a decision: Handle chargebacks and retrieval requests for QuickBooks Payments.
Reach out to me if you have any other concerns or questions about QBO. I’m always here ready to answer them for you. Have a good one.