Poor telephone etiquette

Magdeline called me today to upsell me @15:21 from ***. When I explained that I have already numerous calls about the same thing she dropped the call on me,no goodbye no thank you for your time. Vodacom you are such a huge company and you can't spend some money teaching your consultants about telephone etiquette.State the reason for your call and confirm convenience to speak to me before wasting both our time!