Issue has been resolved. I just visited the treasurer's office and paid the base tax amount without penalties and account balance is $0, have receipt in hand
In this case it all depended on which county employee answered the phone. About two hours ago I decided I had better check on our personal property tax bill too, since we did not receive one for our two cars which I registered with the County within two weeks of moving in. Personal property taxes are due Dec. 5th as well. Well, I needed an account number to check online, which I don't have. So I called the number listed on the County web site and explained what happened on the real estate side, hence the reason for my call.
I then realized it was the same number I called yesterday, but a different clerk answered. After a quick check the clerk said, "This is not right, your real estate account has been assessed a late fee and interest, but you never received a bill. If you drop a check by today and see me (gives her name) I will remove all penalties. No tax is due on the cars, both are registered. You will receive a prorated bill in a month for the 3 months in 2019 you lived in the County."
Thanks again everyone who gave your input.