When ever you want to email just do it cuz there is no issue to contact with embassy its your right to ask about your updates... and they can't slow your process for asking about updates so don't worry about emails... i'm not sure about MP's aur any one else who helps you out from this process... my thinking are about MP/Lawyer/Consultant etc. they are not helpful to reduce the timeline of your case... ek bat aur about timeframe sister timeframe is increased now 21 to 23
and your immigration consultant is not write that they should have everything done in time frame... when i applied my case the maximum timeframe was showing in CIC-website was 16 months and i was expecting that my case is very simple and i'm going to collect my visa within 9 months about i was wrong now i'm in 23rd month
but Shukaralhumdolillah i got my ppr in may
so don't trust any one of them just do the emailsssssssssssss