You could try asking in the /c/fediverse community.

It’s even a European right: https://europa.eu/youreurope/citizens/consumers/financial-products-and-services/bank-accounts-eu/index_en.htm.

Some explanations are available here: https://www.ing.be/en/retail/daily-banking/current-accounts/basic-banking-service-account. A minimum banking service is regulated by law but is not necessarily free of charge.