Bad custo service

Bad customer service the call centre agent was very rude when i called in to cancel my cell phone contract on the 05 September 2023. He tried to sell me something else and when i wasn't interested he became aggressive. He even went mute on me and told me he doesn't have to do anything. The agent's name is Titus. He called back to say he did cancel my contract. I am now surprised to receive vodacom account statement saying i owe vodacom R75 for the vodacom airtime that they loaded on my other number. Why did they load that number whereas i cancelled my contract? Why did Titus cancel 1 number and leave the other number when i explicitly said both numbers? This is unacceptable!