Vodacom agents hanging up calls without helping

I called into the call centre today to have my credit bureau to be updated as i have settled my account. I was transfered to the collections department and i spoke to Nombulelo Ntoyi who was vey rude and hung up the call when i was requesting to seak to a manager to get assistance as i settled it on the 26th March and received a paid up letter on the 7th April 2021 but was not updated Zanele who is the team leader didnt want to take the call and Nombulelo advised that she could not give me Zanele's managers name and then transfered me the survey.