I don't know how I can get my invoice from {{Person Name}}
I get it your confusion about how to access the invoice from Mr. {{Client Last Name}}. Let me guide you through the process. To retrieve your invoice, please follow these steps: 
1. Log in to your account on our website or app.
2. Navigate to the "Billing" or "Invoices" section.
3. Look for the option to view/download your invoices.
4. Select the invoice you need and click on the download button.
In case you encounter any difficulties or have further questions, don't hesitate to reach out. I'm here to assist you every step of the way!