Concerned and disappointed customer

Hi there! Recently I have been noticicing deductions of R110 mentioned in a few posts on this timeline. At first I took it as something that was deducted before the time and only came through later. On closer inspection I noticed that it was Fnb deducting from my account. Further inspections yielded more questions. I recognize that on those days my account was in arrears, but I never received any form of notification that it was. It concerns me that my acc has been in arrears since Saturday and still no sms. In the past I would get a notification and then I would deposit money into my acc. Now it seems as though there is a build up until further deductions take place allowing the R110 to be deducted!