The problem is this leaves a negative balance on my vendor.

I saw in another posting to simply create an expense to balance the vendor but it's not a real expense and screws up my bookkeeping.

I purchase (cost-of-goods-sold) from vendor.  $100 and paid in full with my credit card.  I recieved $10 damaged.  I get a credit for $10.  I need to reduce my cost-of-goods-sold reported to the IRS and I need to apply that credit to that reduction so that my vendor balances to $0.00.  

I think I found this can be done in Quickbooks desktop, but there is no Vendor refund (not Vendor Credit used to reduce balance due but vendor refund to reduce cost-of-goods-sold) option in Quickbooks online.  Is that correct?