You're already on the right track! I'm here to help you record a refund in your QuickBooks Online(QBO), annette23.

Once you got the refund. Simply follow these steps:

1. Select + New and click Bank Deposit.
2. In the Account drop-down menu, select the account where you got the refund.
3. Under the RECEIVED FROM column, choose the vendor who gave you a refund.
4. In the ACCOUNT column, select Accounts Payable. You need to pick this account so you can tie the refund to the vendor credit. 
5. Enter the method your vendor used to refund you and the amount.
6. Click Save and close.

If it is a security deposit, you can write a check or expense to record the refundable security deposit. Here's how to do it:

1. Go to the + New option at the top left to write a Check or Expense. 
2. Enter the necessary information.
3. In the Account details section, select the liability account you use for security deposits from the Account column drop-down.
4. Hit Save and close.

Once done, you'll need to create a service item that you'll use to enter an invoice for the portion of the deposit you are not returning. Check out this article and proceed to Steps 3-5 for further guidance: Refund a security deposit.

I'm adding this article for more guidance on this process: Enter a refund from a vendor.

Please let me know if you need clarification about this, or there's anything else I can do for you. I'll be standing by for your response. Have a great day.