Tax Validation and Submit Anyway

The CorrigoPro Supplier Direct team is developing a solution to automate supply ordering and invoicing between CE requestors and CP Suppliers. Our test account is JLL Block, https://jll-block.corrigo.com/CorpNet/, and the Supplier is Complete Office Supplies (APAC). Complete Office Supplies is receiving a tax validation error in spite of applying the "Submit Anyway" PUT instructions in the API. What in the code pasted below does COS need to correct?