Alright… new solution is published to help Tiller Money customers get their Amazon data so they can use our Line-item CSV importer and get back to breaking out their Amazon spending. 
Earlier in this thread, I flagged a missing data issue that resulted in lost line items. I’m satisfied that that issue is resolved by using different fields— I do not believe this version will drop transactions.
I recommend reloading your spreadsheet browser tab to ensure you pull down the new version of the add-on.
Please let me know if you encounter any discrepancies, crashes or other issues.
Thanks for your patience with this.
P.S. The changes have the potential to affect other importer workflows (e.g. Paypal, YNAB, etc) so keep an eye out for emergent issues in those workflows as well.