online application

ordered a phone online on the 2nd of January 2024 on the 3rd they called and approved my application the lady told me that they don't have an xr they have an iPhone 8 so I optioned for that. not communication was made called on the 19 of January 2024 multiple numbers ***4 and *** still not getting any help. they told me to check my webill still nothing is showing. I told them I want to cancel they said I cant do that. I'm so tired of this company because they not doing anything to help me.