can I get itc on gst of service charge of banks

full itc available on any gst paid by banks on current account charges. u have to give gstin to banks

My Bank charged GST on service charges in Feb 2018 but till now the credit is not reflecting in my GST number in GST portal- as per bank many customers are facing this problem and that it can not be claimed now since the return filing has already been made for that period. I think bank has not deposited the GST amount in my GST number.so where has they deposited the deducted amount and  how do i claim it now?