When I booked this flight in April on the Iberia website I used a voucher as part of the payment. The next day Iberia annulled the flight, but did not re-credit the voucher. It took a full month before it was credited to my account again.
Next my daughter tried to use the voucher for flights to Barcelona on the Iberia website. The flights were booked, the voucher was used -an then disappeared because of an IT-glitch. This was more than a week ago and Iberia has not returned the money (it's a voucher, but it represents money in my favour).
I have been trying to reach the Hotline - no success. Service from Iberia is truly bad/