Inflation indexation discount not applied; confirm US exchange coverage

What went wrong? An inflation indexation discount that was promised was not applied to the customer's billing. The customer also requests confirmation on whether Navexa supports all US stock exchanges. Where is it happening? Platform: Unspecified Browser or device: Unspecified Steps to reproduce: Review the latest billing/charges/invoice where the inflation indexation discount should be reflected. Observe that the discount line item is missing or that the total does not include the discount. Attempt to confirm US stock exchange coverage and note the lack of clear confirmation. Expected result: The inflation indexation discount is automatically applied to the relevant billing period as promised. Clear confirmation is available stating whether all US stock exchanges are supported (or a definitive list of supported US exchanges). Actual result: No discount was applied on the relevant invoice/charges. It is unclear whether all US stock exchanges are supported. Screenshot, screen recording, or error message: Not provided.