efiling and 26as

even after rectification, the amount of tax which is actually paid (even appears in the 26as as self assessment tax paid) is shown as still due for payment and a demand is raised in the 154order. on contacting the helpdesk, it was asked to send a mail with the screenshot of the 26as as they say the amount os not reflected in their system. the mail has been sent. is there something else to be done from assessees side.? please help