It has to be a Volvo dealer that's associated with Polestar. For example, my local Volvo dealer won't service Polestar, have to drive about 30 minutes to another town to get it serviced.
I'd call the Space closest to you and find out what / where their service options are.
For Oregon, we have two service options, both happen to be in the Portland metro area and both are Volvo dealers / service centers.