say the party to take provisional credit of that that will be auto populated with young that some bills which you didn't uplaod and asking for credit by the customer. that time it can be do by paying tax with interest. or whatever tax burden is increasing due to that pay that and wait for revision of returns .
return can't be revised , deposit Ur tax with interest , in Ur next GSTr 1 , in which u can put that bill by entering its Dec dt. it will accepts , & file Ur return,
in my opinion this is not best way to show next month. if till now all return revised process was even in income tax it is then why not they will bring revision in GST or give chance to regularise all previous pending. first let them regularise the system I hope we will get chance . pay the taxes and wait since if taxes are paid and customer has been taken ITC provisionally . after paying we are not supposed to cheating govt .