Disgraceful Customer Service

Received a call from a girl at MTN online, the agent kept speaking over me and when i requested information from her went away and did not eliminate the awkward silence, when she came back i asked her a question about a potential contract and she ended the call on me, she did not call back, I have worked in customer service for more than 10 years in QA, senior and 2c as well as managerial positions for international organisations, i know this industry and the level of customer service this agent provided is disgusting,that girl should get a final written warning or better yet dismissed, she couldn't even speak properly or put together a proper english sentence, she didn't even listen to me before she answered, speaking over me, forcing me to listen to her first, no empathy, no basic customer service skills.