I have filled income tax return for the year 2010-2011 with claimg Refund of Rs 2522/- as consider form 16 (form 16 containg TDS of Rs. 2522/-) but income tax department has given the refund Rs. 2022/- they reduce my refund Rs.500/- As per AS26 credit has given Rs. 2022/- so how can i get my refund correctly.