call to Etihad Abu Dhabi Airport Emigration section and Visa section they will confirm to you, are u allowed or not, might be all data is available in their systems when visa is issued. if any mistakes found by you, share to them and they will advise the exact process to do so. Or ask the Agency who has issued at your place or go to Etihad Air ticketing Branch in your city or its agent they can check in there system too. As ticket is issued to visitor or passenger if visa is valid and correct, but if you found still mistakes in that as per your readings and acknowledge better you check with concern before you flay. This is only my suggestions to my understanding and you are the right person to decide correctly.