xbbTools
Contact xbbTools
Last updated: June 7, 2026
Email xbbTools
For calculator feedback, rule questions, technical issues, privacy requests, or general site inquiries, email:
Email xbbToolsWhat to Include in Your Message
- The tool page you used
- Input units and key values (without sensitive account credentials)
- Expected result and actual result
- Browser and device type
- Steps to reproduce the issue
- Relevant Amazon official source links, if applicable
Calculator and Rule Feedback
If a modeled fee, size tier, or conversion result looks unexpected, include enough detail for us to reproduce the scenario. Screenshots of non-sensitive inputs are helpful.
Rule-related questions may require checking the current rule status shown in the site footer and the definitions in Calculation Methodology.
Privacy Requests
For privacy-related questions or requests about how xbbTools handles browser storage, server requests, or analytics, mention “Privacy request” in the subject line and describe your question clearly.
See the Privacy Policy for current disclosures about local storage, Google Analytics, and future advertising technologies.
Before Sending Sensitive Information
Do not send the following by email:
- Seller Central passwords
- API keys or tokens
- Bank or payment card details
- Tax identification numbers
- Government ID documents
- Complete customer records
- Other account credentials or secrets
xbbTools does not operate a secure messaging portal for account credentials. Use official Amazon channels for account access issues.