Invasive Authentication

I went in to upgrade my contact with Telkom Mobile today; got to the store and handed in my documentation all went well until I had to be authenticated by the company they had hired to protect themselves against ********** transactions. The question that were asked in regards to my bank account transactions over the past few months were so invasive that I honestly couldn’t answer them with have a statement summary in front of me. Needless to say the questionaire timed out and the authentication failed!! Absolutely crazy... now they have to reset and then I have to go back to the shop. Not very covenient at all.