Thanks.
I will, I foresee two challenges:
- German bureaucracy and love of making things complex
- The proof for number 2. Like Lufthansa, TAP only deal with refunds on the phone, never online and never send a confirmation. Thus the customer has no proof whatsoever. At least TAP provided me with a reference number on the phone, which Lufthansa did not.
I will try and see how it goes.

And first hurdle, there is no small claim in Germany. There is a simplified procedure for cases of less than 600 EUR, which is not the case here. You need to go full monty by hiring a lawyer.
https://e-justice.europa.eu/content_...en.do?member=1