OnStar Not working - 2025 Chevy Equinox EV

Hello Advisor 

I received my pre owned Equinox EV 2025 on Friday, March 20th.  I was excited about the vehicle until I attempted to navigate and the vehicle would not pinpoint my location.  I attempted to use the OnStar call button as it was green.  This did not work.  I call OnStar on my cell phone and I was told the vehicle was still registered under the previous owner.  She updated the information and we conducted a reset where I turn the vehicle off exit it and Locked it.  She indicated it would be about 2 mins to sending a signal.  unfortunately  this did not work as it did not work still despite the green indicator on the OnStar button and I still have no navigation capabilities.  I need direction as I have 7 days in which I can return the vehicle.  I am disappointed as I have been. following and reading about the EV's built by GM for some time now.  I know nothing is perfect however the expectation is a basic function of navigation and pinpointing would be working.  Please advise