Very bad service indeed

My account was debited on the 11 February, on the 12 of February i requested more details about why my account was debit without any information or notification, i received a reply back that they will advice shortly, well shortly is a month later and still no feedback received after numerus emails send and complaint lodge, to date no one has even bother to advise. Why is Standard bank debit my account without supply any reason or details. Honestly this is very bad service, i don't not even know why we should struggle to get answers, why do you debit my account as to when you want but can can even supply information. The documents should be in your office as no metro file boxes need to be order, still no response, what happen to putting customers first.