False information via phone call

I was suppose to upgrade end 2021, I was not ready to pick a phone . VOdacom continued to call me. One day a lady from vodacom called and said they will stop calling me, they will now change my package and then WHENEVER I am ready to pick a phone, I can just upgrade. I thought wow this is reat, so my contract will just continue and I can upgrade whenever. So now My phone is broken and I want to upgrade but they say I can only upgrade 2023. Why do we receive false information and emtpy promises via these vodacom calls?