If there is a contradiction between Acts 9 and Acts 22, point it out instead of just claiming it's there. Here, I'll even help you out:
Acts 9:
But Saul, still breathing threats and murder against the disciples of the Lord, went to the high priest 2 and asked him for letters to the synagogues at Damascus, so that if he found any belonging to the Way, men or women, he might bring them bound to Jerusalem. 3 Now as he went on his way, he approached Damascus, and suddenly a light from heaven shone around him. 4 And falling to the ground he heard a voice saying to him, “Saul, Saul, why are you persecuting me?” 5 And he said, “Who are you, Lord?” And he said, “I am Jesus, whom you are persecuting. 6 But rise and enter the city, and you will be told what you are to do.” 7 The men who were traveling with him stood speechless, hearing the voice but seeing no one. 8 Saul rose from the ground, and although his eyes were opened, he saw nothing. So they led him by the hand and brought him into Damascus. 9 And for three days he was without sight, and neither ate nor drank.
Acts 22:
As I was on my way and drew near to Damascus, about noon a great light from heaven suddenly shone around me. 7 And I fell to the ground and heard a voice saying to me, ‘Saul, Saul, why are you persecuting me?’ 8 And I answered, ‘Who are you, Lord?’ And he said to me, ‘I am Jesus of Nazareth, whom you are persecuting.’ 9 Now those who were with me saw the light but did not understand[c] the voice of the one who was speaking to me. 10 And I said, ‘What shall I do, Lord?’ And the Lord said to me, ‘Rise, and go into Damascus, and there you will be told all that is appointed for you to do.’ 11 And since I could not see because of the brightness of that light, I was led by the hand by those who were with me, and came into Damascus.
Now where is the contradiction that you would like to point out?