A collective action brought by ASUFIN guarantees compensation to the consumers harmed by the signing of non-transparent clauses included in the mortgage contracts:

ASUFIN asked the Court to declare the multi-currency clauses entered into by Barclays with its customers, in connection with mortgage contracts, as void, as well as their elimination in future contracts signed by the bank.
In the decision handed down this week, the court accepted the claim made by the Spanish consumer protection association and declared also that the bank was required to recalculate installments already paid by its clients and that those clients should be compensated in accordance with what they overpaid under the terms of the multi-currency contractual clauses.
You can read the full article here: https://www.lavanguardia.com/economia/20210422/6990488/juez-dicta-pasar-euros-hipotecas-multidivisa.html