If you have having trouble finding a testing site, please FLOOD this number with calls. This is in response to my email stating that homeschoolers were being denied access to testing facilities.
“There are centers in South Carolina that are open to test students within the surrounding area for the National SAT weekend administrations.
We suggest the parents contact College Board customer service at 1-866-756-7346 for assistance with locating a center within the area that can accommodate their child.”
Test Administration Services
PS: please let me know what kind of response you have gotten.