Jable Lounge – Fuerteventura

The bronze wont qualify you, but Club Europe ought to- so long as it is the listed BA business class lounge on the oneworld lounges database.

In that case don’t expect access as you’re not flying on Iberia. But BA may have done a deal that gets you lounge access for travelling CE.

BA also may give you a voucher for food and drink. If not complain when you get back to the UK about the lack of lounge access, you may get a few Avios chucked your way

Not sure if you could just buy something to eat and drink and bill it to BA.