Raise gst invoice

As i am a mutual fund distributor regestered with gst ,provide service in UP.
As AMC had paid my commision without deducting gst of rs.10000/-
Now my question is that how i have to raise the bill to amc like 
1. 8475 +1525(gst)=10000 ,or
2. 10000+1800(gst)= 11800.
Now if i raise bill as in point 1, then amc is enjoying the benefit of itc on my money. Or if i raise bill as in point 2, then why should amc paid me rs. 10000 only..
Kindly please resolve at earliest for which i will be thankfull.