T-mobile T-mobile promised me an upgrade on my plan and phone and didn't kept it when i decided to purchase it.

I was promised on a upgrade to my plan and phone,  and the price said would bem $75 for the new plan ( go5g plus and $17 to the new phone ( s23 ultra 256gb) with a s10+ trade in. To purchase it Veronica asked about the old s10+ IMEI, I was at work, couldn't get it so she said I could contact them another day. I contact them again and Dan another representative told me that he couldn't keep the way was told by Veronica,  and showed me a more expensive plan and made so frustrated and upset,  took me 2 hours talking to him and his supervisor Jessica, she tried give other options, but not the same plan offered by Veronica. That was the only thing a wanted,  the new.plan to update my device at the cost she said, but unfortunately she didn't do that, can't believe they can change what they say, I have all the chat with all conversations on it. I'm leaving T-mobile as long as I don't get what was promised.