NRB accting subscription fee

Very disappointed at this situation, I phone customer support on Monday to find out about a R156.00 being deducted from my bank account for NRB accting subscription fee. The consultant, Amilia asked me to phone back after 48 hours, because they would start an investigation. I call back today with the reference number given to me and the same consultant informs me that I should wait longer because there has been no feedback, but I inform her that this is unacceptable because a R156.00 at this time of the month is a lot. I then asked if they could at least put the money back while they were busy investigating, and she said she cannot advise me, then I asked when does she think I will have an answer and again she could not advise me, so I asked her to refer me to the survey portion of the call because, this is really poor from one of the established banks in the country. I mean how can R156.00 just get deducted without anyone knowing why ? I need an answer or my hard earned money back.