Would be nice, but some banks require an online mobile or your bank account is suspended. During covid my wife's phone died and we couldn't get a new one due to most severe lockdowns. We rang the bank wtf and they simply told her the account will be re-activated one her phone number is reachable again and at least for 48h. How frequently you check that? Can I replace the sim in my phone? They said if you go offline we suspend your account too. Cash was not accepted that time and it is hardly since then.