Change of Status from H1 to H4

[NS355]

Hi All,

I have applied for COS from H1 to H4 in on May 8th 2017.... Still waiting to hear ...

If any one has applied the same this year and has received the approval , can you please advise how much time it is generally taking for the processing.
My application is at Vermont Office. ( I believe so as its an EAC number)

Any other suggestions on the same ?

Thank you.