My formal office location was in the NY state, but as most of people during the pandemic in 2020 and the project needs. I was working either from home or in our NJ lab since Apr. When I filed my returned, I based this fact and entered I worked in NJ 250 out of 365 days. Them I filed all my returns (both NY and NJ), which NY I should get like $2,000 refund while paid NJ around $1,700. In mid May, I received a notification from NY for the workday justification which I did and send the information electronically to the NYS based on the facts I stated earlier. But, a week ago, NYS deposit around $500 to my bank account without any explanation of what's their base to make such decision or provide me any information/documentation on this.
What should I do from here to get my tax money back either from NY or NJ ?