U r fsw, April 10 ITA and May 29 AOR and you got DM in July? That's way too early. It could either be that they forgot your application after DM or they are waiting to process April 10 ITA and will send you PPR along with them or that DM is actually a useless update and has nothing to do with PPR..
Haven't you ordered Gcms notes? If you did could your share with us, it will throw real light on what actually DM is.