According to relevant information, the invoice of the leading tea house in Wuhou District was collected at the Tax Service Department of Wuhou District Taxation Bureau. According to the provisions of Article 15 of the Measures for the Administration of Invoices in People's Republic of China (PRC), units and individuals that need to receive and purchase invoices shall go through the formalities of receiving and purchasing invoices with the tax registration certificate, the identity certificate of the agent and the stamp of the special invoice seal made according to the style stipulated by the competent tax department of the State Council. The competent tax authorities shall, according to the business scope and scale of purchasing units and individuals, confirm the types, quantities and methods of purchasing invoices, and issue invoice purchasing books within 5 working days. Therefore, the invoice for the teahouse in Wuhou District was collected at the Tax Service Department of Wuhou District Taxation Bureau.