Standard Bank sent my account into legal review without any correspondence prior

Standard Bank sent my account into legal review without contacting me prior. I forgot about my cheque account with them and the fees had been accumulating and instead of contacting for the approximate R2000 they saw fit to waste more of their own money by sending it to a legal institution. They could have easily resolved this if they contacted me prior. I am settling the amount with the legal firm but Standard Bank had better hope that this does not affect my credit rating in future backseat this could have been avoided. When I called Standard bank's call centre they were apologetic but very unhelpful and said that I must go to the branch to resolve this and if there is any future credit related problem then I must clear it up with Transunion.