Invoices are sent by email with a secure payment link. Ensure you use the link from your invoice email to complete payment.

Yes. Use the Message Us button in this portal (or email us) and we’ll resend your invoice link.

Use Upload Files in the portal to submit manuscripts, cover ideas, images, and reference links. You can submit uploads multiple times as your project evolves.

Common formats are welcome—PDF, DOC/DOCX, JPG/PNG, and ZIP files. If a file is too large, share a Google Drive link in the Notes field.

We’ll email next steps after each milestone. If we’re waiting on something from you, we’ll list it clearly in our message.

We typically respond within 1–2 business days. If your timeline is urgent, note “PRIORITY” in your message subject.

Yes. Send your request through Message Us. If it impacts scope, we’ll confirm the update and provide pricing before proceeding.

If your project includes a scheduled call, we’ll send a booking link by email. If you need to reschedule, reply to that email or message us here.

Plan purchases generate an order receipt and confirmation email. If you need a copy, message us and we’ll resend it.

Use Message Us in the portal or email info@harmonpublishinggroup.com ()and include your project name in the message.