Thanks for your help guys. I just spoke for the 12th time with IB and they are saying that the bag was found the next day I arrived to MAD (Sept 3rd) and placed in an IB flight to MAD. The thing is it never made it to MAD and also they never heard from it again. At this moment they are telling me the bag isnīt lost but that I need to submit a list of my belongings with the estimated value of them, although this is just to look for the bag (yea sure, I even told them the bag had 4 different tags with my name including the AA elite one) because the airline tag could have fallen from my bag. So at this moment I am preparing a list in order to send it to IB. Hope they wonīt want to solve the problem with a $300 euros voucher. But yes, they are telling me it isnīt lost even though they are asking me for a list of contents and their estimated price.

Well, will let you know about anything else that arises in my case. Thanks guys again!