Hi, @Areid1. I'm here to help.

I understand this to be an urgent matter. Let me route you again to our support team to ask for updates on your concern. Here's how:

1. In your QuickBooks Online company, go to Help (?).

2. Select either of these tabs:

• Assistant tab and type Talk to a human.
• Search tab and click on Contact us to connect with a support expert.

3. Choose how you want to reach us (phone or chat).

We are available to provide support from Monday to Friday, starting at 6 AM until 6 PM PT, and on Saturdays, starting at 6 AM until 3 PM PT. Moreover, we offer advanced support that is available 24/7 for your convenience. If you need to have an urgent call or can't access your account, you can browse their phone contact details: QuickBooks Online Support.

It would help us also if you could detail your concern about converting an estimate to an invoice. For now, let me add this guide customizing your estimates and invoices according to the information that matters to you the most: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Let us know if you have updates on your concern about converting an invoice to an estimate. We'll do our best to assist. Take care.