Let me help you reimburse your vendor, @Jay Jay7.

There are numerous ways to reimburse a bill, depending on the situation. Happy to share detailed information for you to guide you accordingly. 

You will need to record a deposit if a vendor sends you a refund check for a paid bill. Let me demonstrate:

1. Go to the Banking menu and select Make Deposits.
2. Press OK if the Payments to Deposit window appears.
3. Choose the vendor name in the Received from the drop-down. 
4. Pick appropriate Accounts Payable in the From Account field. 
5. Enter the Amount, then hit Save & Close. 

After that, record a Bill Credit for the refunded amount:

1. Go to the Vendors and choose Enter Bills. 
2. Select the Credit radio button to account for the return of goods.
3. Pick a vendor name and appropriate expense account in the fields. 
4. Enter the Amount, then click Save and Close. 

Once done, let's link the deposit to the Bill Credit. Go as follows: 

1. Go back to the Vendors menu, then choose Pay Bills. 
2. Check the Deposit that matches the Vendor check amount.
3. Click Set Credits and apply the Bill Credit you created earlier.
4. Hit Done.
5. Pick Pay Selected Bills and hit Done. 

Check out this link to learn about the different ways to record vendor reimbursement: Record a vendor refund in QuickBooks Desktop.

On top of that, I recommend consulting with an accountant. They can provide additional guidance and may have another option to meet your company's needs.

Let me add the reference about Accounts Payable workflows in QuickBooks Desktop to better guide you.

If you have other questions, please feel free to keep in touch. We'll respond as soon as we can.