The bank uses all sorts of technology to verify who you are. These require documents that you didn't realize you needed, like proof of residence, and electricity bills and employment contracts.
What should you do?
You don't have a formal lease. Getting an alternative proof of residence takes a lot of time. But having a bank account is worth the effort.
You don’t have the required documents. You realize you cannot satisfy the manager’s request, and decide that a bank account is not for you.