Welcome to the Community, @darcy4.
You should be able to see the GST Refund option in the Payments tab in the Taxes menu. Since it's not showing in your QuickBooks Online (QBO), I highly suggest contacting our Phone Support team. They're able to pull up your account in a secure environment and investigate this odd behavior.
Here's how to reach them:
- In QBO, click the Help (question mark) icon at the top right.
- Select Contact Us at the bottom to connect with our live support.
Just in case, I'll add this article for future reference:
Please know that I'm only a few clicks away if you have any other issues or concerns. I'll be happy to assist. Have an amazing rest of the day!