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Have feedback about a tool, found a bug, or have a question about an Underground Stack product? Email undergroundstack01@gmail.com or contact the shop through Etsy messaging.

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On the Etsy shop page, choose the contact or message seller option to send feedback. We have not included a form that collects your files or email address. When reporting a bug, include the tool name, browser, steps to reproduce and error message. Use a small non-sensitive example; do not send confidential files, customer records or passwords.