How to Submit a Billing or Invoice Inquiry

Last updated: August 10, 2026

If you have a question about an invoice, usage charge, payment timing, or a billing-related discrepancy, MX can help route your request to the right team quickly. The fastest way to get help is to send a clear request with the key details included up front.

You will submit your request to our support team at support.mx.com.

When to use this process

  • You need help understanding an invoice

  • You want clarification on a charge or usage amount

  • You have a question about payment timing

  • You need help resolving a billing-related concern

What to include in your request

  • Your company name

  • Invoice number, if available

  • Date of the invoice or charge

  • A short description of your question

  • Any supporting screenshots or documents that help explain the issue

  • Best contact name and email for follow-up

Example request

Hello, we have a question about an invoice received on . We need clarification on one of the listed usage charges. Our company is [Company Name], and the invoice number is [Invoice Number]. Please let us know what additional information you need.

What happens next

  1. MX reviews your request.

  2. If the issue is billing-related, it is routed to the appropriate team for follow-up.

  3. You may be asked for additional details if the invoice or account information is incomplete.

Important: Billing questions are handled differently from technical support issues. If your request involves both a charge question and a product issue, include both details so each part can be directed appropriately.

When to submit a separate technical support ticket

If something in the product or integration is not working as expected, submit that as a technical support issue even if it may have billing impact. This helps avoid delays and ensures the right teams can work in parallel.