Unauthorized debit order Gold Star and Y2K Connect without authorization

Month on month i am having to reverse a debit order that had the reference Goldstar and now in comes in Y2K Connect. I called FNB to assist on this matter as far as i understand a debit order needs to be accompanied by the a debit order mandate so i baffled as to how then these debit orders are initiated without a mandate. The response from my Banker was concerning as they said i have to lodge a case SAPS or call these people directly even after explaining to Reabetswe Segale that i have no affiliation with these entities. She further indicated that one entity is in Umhlanga and yet am in Bryanston and have never set foot in Umhlanga.How are you as a client protected ?What is the point of flagging an issue and your banker tells you to handle it yourself yet you have indicated you have no affiliation with these entities. Worse refer me SAPS. Am a utterly disappointed with FNB!!How is my data not protected? What are they doing as my banking institution to protect me as their client?