Hello there, @taskaalkhaz.

I can help remove the supplier credit in QuickBooks Online (QBO). We can do that by going to the Expenses menu.

Here's how:

1. Go to the Expenses menu.
2. Click Suppliers.
3. Choose the supplier who gave you credit.
   
   
4. Select View/Edit.
   
   
5. In the Supplier Credit window, click More at the bottom.
6. Hit Delete.
   
   
7. Click Yes to confirm.

Also, you'll want to visit our Help Articles page for more tips and references for managing your business with QuickBooks Online.

Let me know if you have other questions about supplier credits in QuickBooks. I'm always here to help. Take care.