I notice Street address on approved I797A for my H4 dependent has been misspelled. The actual street address is S Valentia but they have spelled it as S Valentina. Can i ignore this or should this be corrected? Other details are correct. Surprisingly the receipt was delivered without issue last Sep. What is the process of getting this corrected and how much time does it take to get corrected? Also my employer has filed it correctly but its a mistake from USCIS. Note that my extension was filed in premium processing.