The issue is customer is concerned with extra tax calls on their account.
The environment is Dynamics NAV 2009
The resolution is to review the account usage spreadsheet from the Customer Account Manager, and demonstrate where the Total Billable is from.
The cause is customer is gone over the limit with usage.
Note: AvaTax for Microsoft Dynamics NAV 2009 is sunsetted and no longer supported by Avalara as of April 30, 2016. This existing knowledge base documentation is available to provide known paths to resolution for documented issues. If you are using a version affected by service discontinuation and want to maintain access to Avalara Support, you’ll need to upgrade to the latest version of the integration as soon as possible