Originally Posted by
ckx2
OP should have enough substantial proof that he was issued a ticket in the first place. Just because there are IT hiccups does not prevent EU261 from being applied. While indeed EU261 must be claimed against Iberia, with the proof that a ticket has been bought from aa.com, the compensation for the hotel should be claimed with AA (as they have messed up the ticket in the first place).
But IB is either liable under the EU Reg or it is not. If it is then it must pay for everything, including the hotels, meals, etc (duty of care).