I filed extension and trying to file now. I paid $44.99 for additional state and completed return. When I tried to eFile, it asked another $24.99, fine but, got problem

Before filing it offered Audit Defense, I didn't accept it as my risk is almost zero however, when I tried to file, it is asking $44.99  (cost of audit defense).  I couldn't get around this problem.  Why should I be forced to buy audit defense?