You could probably fix it yourself. The shade is probably made by United Shades and they have kits to fix the broken string. You have to remove the screws on one end to pull the shade over to see the screws on the other end.
2008 Classic 25fb "Silver Mistress"
2015 Ram 2500 6.7L Cummins. Crew Cab, 4x4, Silver
2010 Tundra 5.7L, Double Cab, 2wd, White