Contact & Support

Primary Contact Channel

For all inquiries, please email our dedicated support desk directly:

Expected turnaround: We respond to customer support inquiries within 1 to 2 business days (Monday through Friday).

Self-Service Troubleshooting Checklist

Before emailing our support desk for interface or drafting questions, reviewing these three immediate steps often resolves common local browser issues:

• Backup Your Active Work First: Click the "Export JSON" button at the top of the invoice editor. This exports your current draft data safely into a readable .json file on your computer.
• Hard-Refresh Your Browser: Hold Shift and click the reload button in your browser (or press Ctrl+F5 / Cmd+Shift+R) to ensure you are running the most recent version of the client scripts and stylesheet.
• Verify Private Storage / Incognito Settings: If your saved drafts or Pro themes disappear between browser restarts, check that your browser is not set to auto-wipe local site data or running in strict private browsing mode without local storage access.

Inquiries We Support

• Pro Subscriptions & Billing: Assistance with Stripe billing portal links, trial cancellations, invoice receipts, and plan changes.
• License Key Retrieval: Help recovering lost keys or resolving activation issues across multiple devices.
• Bug Reports & Technical Issues: Technical feedback regarding PDF export geometry, canvas logo downscaling, or browser storage anomalies.
• Tax Authority Data Corrections: Notice of statutory changes in tax rates, invoice rules, or registration thresholds in verified jurisdictions.

Guidelines for Technical Support Inquiries

To help us diagnose and resolve your issue as swiftly as possible, please consider including the following information in your email message:

• Operating System & Web Browser: Specify whether you are using macOS, Windows, Linux, iOS, or Android, along with the browser version (e.g., Chrome 130, Safari 18, Firefox 132).
• Invoice Draft Snapshot: If experiencing calculation or preview questions, export your invoice to a JSON backup file (via the "Export JSON" button) and attach it. Since the JSON file contains your local draft, make sure to remove any sensitive personal information before sending.
• Detailed Error Message: Include a screenshot or copy of any error message shown on the screen or in your browser developer console.

Why Asynchronous Email Support?

We purposefully provide 100% written, asynchronous technical support rather than maintaining a call center. Because Deleix Invoice Maker is a precision financial tool with mathematical and tax-statutory invariants, written communication enables our engineering team to review code paths, reproduce browser scenarios, and provide exact, documented guidance without rushed verbal exchanges.

Security & Vulnerability Disclosure Policy

We take software security and cryptographic integrity seriously. If you believe you have discovered a vulnerability in our Cloudflare Worker API, Stripe webhook handling, or client-side cryptographic license validation, please email [email protected] with the subject line [SECURITY VULNERABILITY REPORT]. We acknowledge all security reports within 24 hours and coordinate responsible disclosure.

What We Cannot Provide

Please note that Deleix Invoice Maker is a technology provider. Our team cannot provide individualized accounting, legal, or tax filing advice. For specific questions regarding whether your business must register for VAT/GST or how to treat cross-border digital services, please consult a certified tax professional or the relevant national tax authority.