Poor training and service.

Very very poor service and training from computicket call Centre staff... I bought tickets online and the reference stated invalid at checkers, upon calling the call Centre the lady insisted I give her my "credit card" number which I don't even own a credit card... I kept telling her I used EFT. I was very much irritated by the fact that their system is wasting my time, I'm using my airtime to fix their issues and now this lady is not even listening to anything I'm saying... To top it all she tells me not to shout at her, like who must I shout at? Is she not computicket? Is that how computicket trains their staff in dealing with irade customers??