1. Title: At the beginning of the document, write the title of the call charge application report, clearly indicating the purpose of the document.

2. Introduction: Briefly introduce the background and purpose of the report. For example, you can write "I'm here to apply for phone bill reimbursement. The following are relevant details and explanations. "

3. Background: Briefly describe the situation that calls are needed, including the reason and time of the conversation.

4. Expense Description: Describe the expenses in detail, including expense type, amount and date. If possible, provide a copy of the receipt or invoice as proof.

5. Reason: Explain why this expense should be paid by the company. This may be because you are communicating on behalf of the company, or the fee is to promote the business development of the company.

6. Conclusion: reiterate that you want the company to pay this fee and thank the company.

7. Signature: At the end of the document, sign your name or electronic signature to show that you agree with this report.

Please note that different companies may have different reimbursement policies and application processes, so you may need to confirm the format and content of the report with the company's finance department or human resources department before submitting the report.