I sold my SC house while resident in MD. SC withheld 7% of the gains, sale was 9 months after purchase. I don't think it is taxable - where do I capture in TurboTax?

We sold our SC home since I got a new job. We were living in MD when we closed on the SC home, so SC withheld 7% on the estimated gains. For federal, we can get a partial exclusion of the gain, something like 38% of $250,000 (for me and my wife), which is much higher than our gains. It seems SC should refund us the 7% of the raw capital gains since we paid no tax on the gains in Federal. I only have my closing disclosure to prove we paid this tax to SC. Where/how do I report/capture this within TurboTax?