I have received a statement, 1099-G 2017, from the Ohio department of taxation that shows an amount of overpayment during 2017. How do I go about asking for a refund?

Later in 2017, I moved to Colorado and I have already filed taxes for that year in both states. This year 2018 I filed from Colorado only. I used Turbo Tax on the internet for filing my returns.

Where and how do I apply for the refund from Ohio State?

Any and all help will be highly appreciated.

Thanks in advance.