i am in usa for last 2 months for doing my undergraduate . but embassy due to their mistakes gave me visas for 2 years only. i colud not change it as it was chrisrtmas time and had to flt soon after that. now i am thinking to go to communiy college for my 45 credits hours. so i need to change my i-20 too. question is that i have heard that i cant go home when i am studying in community college as white returning back immigration officer could send me back . is that true or not. d o i need to go to nepal for visa extenion. and another qusestion , i have my american uncle , who want to sponser me . if he sponser my expenses what benefits will i get. am i allowed to work more than 20 legally or ant advantages need suggestions