Furious Customer

I've called in today to cancel my 1 contract effective from January 2022. As always the consultant want to convince you not to cancel and sell a better deal to you, but then they ALWAYS mess up your request. I've told the lady I would like to go on prepaid for the one number and would like to upgrade my other number once the contract is finish. She convinced me that I can upgrade it now effective from 1 January but I've told her I want the same phone that I've upgraded to last month. Only to receive the invoice and noticed that she gave me the Samsung A32 Lite. They never listen as long as they get a sale and I've also told her she needs to give all the extras effective from January, I went onto the app and saw she added those things effective immediately. Can someone please call me to rectify this mess and rather CANCEL everything that was done today. Today they've actually had this discussion about cellphone companies repeatedly messing up people's contracts.