Originally Posted by dublinaviator
With all due respect, thats bad advice because people will get nowhere by complaining to Aer Lingus. All EIR flights are operated by Aer Arann, so they're the ones responsible for compensation in the event of any delays or cancellations. So people should contact Aer Arann and take up their claims with them.
You should probably tell that to EI customer care, who have compensated me in the past for delays experienced while travelling on EIR.
I agree that this is slightly unclear and the responsibility would fall to RE, in the case of a standard code-share. However, the EIR flights are effectively wet-leases to Aer Lingus. The ticketing and marketing airline is Aer Lingus and as such, they take over all customer related interactions, from reservations to baggage handling. The tickets and boarding cards are issued under standard Aer Lingus conditions of carriage. This is much more comprehensive than a standard code-share agreement and with this type of set-up the usual procedure is to contact the "mainline".