Group 1 - The article provides a step-by-step guide for companies to withdraw and modify their export tax refund applications if they discover errors in their submitted data [1][2][3] - The process involves logging into the electronic tax bureau, selecting the appropriate options, and filling out the withdrawal application form with the correct details [2][3] - After submitting the withdrawal application, companies can check the status of their application and, once approved, proceed to modify their export details and resubmit the tax refund application [3]