Flight from KL to Hanoi, flight no OD571, seat no 7C, on 19/5/2019 When I boarded, all TV screens were switched on, except mine . Apparently it was not working. Asked for help from the crew, the 1st one said she will reset the screen, after 30 minutes still not working and she never bother to come back and update me what happened. Complained to another crew member, also said will reset, again never come back to me. Complained for the 3rd time, the crew said already reset, if still not working, nothing she can do . I asked if she is going to find a solution for me, the answer is still no . I asked if she can let me change seat, she said I have to find the seat myself because the flight is very full ??? ) I believe the air ticket price includes in flight entertainment, I would like to request for some refund because of incomplete product given and bad service I don't take flight which has no in flight entertainment ( if it's more than 3 hours) . I stop taking AA a few years back because of that.