Despicable bank behaviour

My account was blocked by the bank without any notification at about 10:30pm. In the morning (Tymeback call centre operates 7am-8pm), I called the call centre at my own phone expense and was told they blocked it for my security from *****. After being asked numerous questions about my ID, cell no, email address etc. my account was reopened. Surely it should be the account owner who requests the bank to stop account when there's suspicion of *****. I could have been on holiday and unable to spend my own money because Tymebank willy-nilly decides to block my account.