bad service

I was just phoned 28 january 2020 at 15:55 by one of the sales agents at Vodacom and wanted to change my data usage, he wanted to offer me a deal and when i told him not to do any changes he must leave everything as is he did not want to take no for an answer and then he just put the phone down in my ear. His name was Ashley. I think that is very bad and this is not the first time something like this happened, last year the same thing happened and they still did the changes even when I told them I do not wanted the changes as we were going to upgrade the contract. What they are doing if ***** and i have only had bad experience with Vodacom.