Contact centre manners

Hi,

I have just received a call from your contact centre ***) asking if im interested in the Sanlam Credit Card. The lady went through her sales pitch which I gave time to listen to, as soon as I advised that I am not interested she hung up. No thankyou for your time or any show of manners. Can you please address this, it leaves a bad taste in ones mouth, alternatively if they can ask if we interested in listening at the beginning so that we can say no, Ill understand a person hanging up rudely, but not after i have given you my time to listen to a pitch i didnt ask for.

Regards