What actually happened to service???!!

I just had a consultant call me RE my enquiry on a credit card application. Apart from rambling on sounding so bored and saying everything so fast that I couldn't hear what she was saying - she asked for my capitec account number - I asked why and she said if I'm not comfortable I must go into the bank. I said no - I am asking you why you would need my capitec account number and she hung up on me.