Poor quality cards!?

I just visited my local Capitec branch (Die Boord) to draw some cash. The auto teller took my card but did not give an option to withdraw cash. The bank lady very adamantly told me that the card is damaged and that i need to get a new one at a cost of seventy rand. There are no visual damage to the card and the card is only afew months old. I promptly walked over to the FNB teller and withdrew my cash!! I am now wondering what the real problem is? If the card is damaged it must be electronically over which i have no control. The other question is: is Capitec cards of poor quality? I have cards of several other banks and never had a similar problem!!