The assets in the bank account, as well as in the custodial wallet, can be requested back from Solarisbank until today. The assets in the self-custodial wallet (Vaults) can be restored externally by means of the seeds or transferred into the new Bitwala app. All services were discontinued on the 19th of December 2022.
Yeah, I was suspecting that user deposits would still be accessible since EU has some pretty stringent regulations for requiring the use of a partner bank for custody, among other things (It's the reason why most forex sites and e-wallets have a disclaimer that says their services are offered by "Bank of ABC Natural Name ltd").