@消费者，以下这几种不合规的开票情形您都清楚吗？

Core Viewpoint - The article emphasizes the importance of adhering to the regulations outlined in the "Invoice Management Measures" of the People's Republic of China, particularly regarding the issuance and management of invoices in business transactions [5][10][19]. Group 1: Invoice Issuance Regulations - All units and individuals engaged in business activities must obtain invoices when making payments for goods or services, and cannot request changes to the item name or amount on the invoice [5]. - Invoices must be issued truthfully and in accordance with specified timelines, formats, and must be stamped with the official invoice seal [5][10]. - Any act of issuing false invoices, such as issuing invoices that do not match actual business activities, is strictly prohibited [5][19]. Group 2: Specific Scenarios Regarding Invoices - Prepaid cards can only have a regular VAT invoice issued at the time of purchase, and no invoice can be issued for future consumption [6][8]. - If a government subsidy is involved in a purchase, the invoice must reflect the full price before the subsidy, as the subsidy is not considered a commercial discount [11]. - Invoices with unclear handwriting are not valid for reimbursement or tax deductions, and must be filled out completely and clearly [10]. Group 3: Compliance and Penalties - Companies must not lend or transfer invoices, and any violation of this regulation can lead to significant fines ranging from 10,000 to 500,000 yuan depending on the severity of the offense [20]. - Tax authorities provide channels for verifying the authenticity of invoices, which is crucial for compliance [20].