Sales agent called me for an upgrade when i informed him im not interested he resulted to insult me and dropped the call

Sales agent called me for an upgrade when i informed him im not interested he resulted to insult me and dropped the call. I want my contact canceled. External people would never plan to ruin ur reputation and business just internal people are plotting ur down fall. The indian called me late evening. I want nothing to do with vodacom i want my contract canceled. My contract said nothing abiuts being insulted so we canceling this immediately