In the first instance, I think we need to officially complain to Revolut.
On https://help.revolut.com/help/more/legal-topics/how-do-i-complain/ and https://cdn.revolut.com/terms_and_conditions/pdf/complaints_policy_89d0fb4d_0.1.0_1702909765_en.pdf, they detail how to complain and where to go after that if they don't solve it. Lithuania authorities are a possibility, but I'm not sure if our national authorities or Lithuania authorities are best. I sent a formal complaint, should get a (non-)reply soon, then will be in touch with my country's financial authorities.
You can always try every avenue and see what works: Revolut formal complaint + your country financial authorities + Bank of Lithuania + Lithuania financial authorities.
In the worst case, someone will have to start a lawsuit.