Not Following proper instructions

Cancelled all my contracts with Vodacom in November 2022 to prepaid. In December 2022 I wanted to take out a contact with cell c so they said Vodacom do not want to release the port , so I found out the contact center agent who assisted me of Vodacom did put me on flexi zero contract and did not cancel my contract ! Mind you I settled all the outstanding amounts in order for the cancellation to take place , Which was very disappointing , for her not to follow proper instruction now I have to wait a month for the flexi zero to be cancelled , and now there is another outstanding amount of R220.02 !! This is unacceptable you cant just put someone on another contract not knowing if the person will be able to pay the funds !! and the reason for leaving them is due to not receiving proper service .