Thanks! Called IRCC and was told that the waiting time for a web form response can be upto one month :')They don't respond in all cases AFAIK. In my case, they called me to confirm if I will be available on Aug 23rd for oath and then they approved my application. Generally, you'll see things progress quickly (depending on where you are in the process).
Once you receive a webform response that says your UP request was sent to the office, wait a couple of days and call IRCC. Ask them if your UP request was approved and they'll be able to tell you.