i did interview on dec 6 2010.and the office ask for DNA .and also b/c of the office delay .i did the DNA on 26 jan 2011.and they appointed me to collect my visa to feb 15 .when i want to collect they inform me that my visa is not current .so please help me what can i do .i sold all my all i had to travel .what can i do help me .my priorty date is 31 aug 2005 f1.