Shame on you Vodacom

I am absolutely dismayed and disgusted with the level of service and support I have received from Vodacom. I have now unsuccessfully after two still had no resolution to my issue. 2 years ago I did my upgrade at the end of August part of the upgrade was a promotion to get a 2nd phone and an additional line. I was told 3 times by the service agent at the Rosebank shop that at the end of August 2020 to call and cancel the additional line otherwise I will be charged for it in September. This is what I did to be told I can't cancel this line until November as that is when my contract ends on my main number. This is absolutely ridiculous now I am paying for the additional line which I don,t need or use.All I want to do is cancel my additional line and just keep my main number and contract. I have had rude, unhelpful and absolutely clueless help from agents who should be in a position to assist, also promises of call backs never happen.I am constantly having to call to try get this matter resolved. Irony is this a communication company that cant communicate!