Gonzalez Muffler Shop

Can I give a zero? I took my husband truck there to get glasspacks they guy repeated to me what we wanted said okay be back at 5 . go to pick my husband truck up and he put a new cadliac converter he wanted me to pay for it but I didn't ask for that . so needless to say had to get the law up there and I didn't pay for it because that's not what I asked for . I'll never go back there . worst customer service ever !