The cardmember was charged a different amount than agreed.
A pricing, tax, or adjustment error caused the settled amount to differ from what the customer agreed to pay.
Your order record proving the agreed amount is the whole defense here.
Order record showing the agreed amount matched against what was authorized and settled.
Submit order and authorization records showing the charged amount matches what was agreed.
Adjusting an order total after authorization without re-authorizing.
Re-authorize whenever an order total changes after initial authorization.
Flat monthly fee, keep 100% of what you win.
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