QUARTERLY FILING-URGENT

Hello seniors

One of my client choose quarterly returns in f.y 2017-18. Now find some sales bills missing totalling Rs. 50 lacs above.

Now we like to add these bills in Aug month GSTR1 return together with previous year missing bills. But portal not accepted as the quarterly limit exceeds above 1.5 cr.

What we can do in this regard. How to add the last year missing bills

Pls any solutions..

Thanks