LATE FILING OF GSTR1

Shabbir Rangwala (18 Points)

08 June 2018  
Good morning.
I have just cone to know that Gstr1 has to be filed before the 10th of every subsequent month .
So gstr 1 has to be filed for the month of May before 10th June.
but I am travelling and will be back to work only after 15th of June.
Beside late fee and penalty which is ok I have been made aware by someone that late filing of gstr1 results in my buyers not getting input credit as I have filed it late.
is it correct? worried on that.