Is "Toll fee" correct or not? [closed]
Yes, it can be correct. It would usually refer to a fee charged for a toll generally paid by someone else.
Such fees are common on rideshares ("Toll fees are included in the individual ride breakdown in your ride history"), rental cars ("you may be charged an extra fee on top of the $6.00 toll fee"), etc.
Anecdotally, it also appears to see some less common colloquial usage in the redundant sense, similar to "ATM machine" or "PIN number".