Capitec Bank wont take responsibility

I havd an account witb Capitec. I had no problems with them. Until i really needed their support. My cell phone no was ported without my permission. I notice that i had no signal so i called up cell c they mentioned that my cell no was ported to MTN. That shocked me i immediately called capitec they mentioned to me that indeed air time was purchasedfrom my app for R1000. I ask them to stop transaction gpong through. They also launched an investigation and gave me a incident no. They notified me that because these ********* have have used my app and apparently ha e my pin they are not taking responsibility for that. I would asume that tge app is secured enoungh. Now our money is not safe anywhere. I thought that the bank has an insurance for this kind of incidents clearly not. Very disappointing.