Hello, my interviews was in 13 March 2018 and i got approved for my case in27 March 2018 and i moved to neighbor state in 1 April 2018. I check my old mailbox sometimes but i didn`t get my work permit card or any letter from USCIS. I already can work with my letter which they gave me 27 March but i don`t have EAD card. Should i visit my interview office to ask it?