Employer refuses to correct state tax withholding
I was working remotely in IL and relocated to CA last year. My work location was not updated to IL until today due to an error. My paychecks have been withheld IL taxes the entire time. When I told my employer about this error, they refused to send me a corrected w2 and said I need to fix in in my personal return. How should I file my IL and CA tax now? Should I just tell CA all my income was sourced from IL or I didn't move until today? Will IL refuse to refund my withheld tax since my employer has already told them I've been working in IL even though I have not?