Unacceptable Attitude

I take offence to a tele-marketing call centre agent from Mondo - a certain Crystal Peters - who after advising her that I do my own research and don't require any information from Mondo had the audacity to put the phone down while I was in mid-sentence. I am very well aware of Mondo's services and to be honest I have researched potential savings via yourselves however after receiving such ill-mannered attitude from your employee I am certainly going to refrain from utilising and recommending Mondo now as if this is how you treat future customers then I would hate to see what service existing customers receive!