Help South Carolina Hurricane Victims Get Supplies

My son is in South Carolina and is affected by the flooding due to Hurricane Helene. He and his roommates are trapped due to no electricity and are running out of supplies. They are now running low on gas, food, etc. What stores are open or only taking cash. They did not think about getting cash out of their bank before the storm hit. Now they cannot access their bank due to the electricity being out as well as the banks servers being flooded out also. I am planning on driving down there in a day or two to take supplies to them. I am picking up a radio and extra batteries for them, gasoline, food, as well as some cash for them. However, I am on a very limited income due to me being medically disabled due to chronic leukemia so I do not have a lot of funds to access to help them. I’m asking for any help I can get so I can get down there and make sure everything is OK with you