What the difference between two bold sentences is?
I am sorry to state that I applied for a new telephone on 05.02.2016. Though more than two years have passed since the application, I have not received the new connection yet nor have I been informed at what stage my application for the connection is at present. Kindly let me know when I can expect the connection.
I shall be highly obliged if you take immediate steps in this regard.
I would be highly obliged if you would take immediate steps in this regard.
My question is, are both the bold sentences correct In the above context? If yes, what is the difference between them?