Premium Lounge helped me too in the same scenario. Somehow, I also made silly mistakes while doing my application online. The lady working in BLS mentioned them to me. I was visiting BLS from another city & premium lounge service saved me a trip.
Finally, the status changed to Granted...!!:)
Submitted in person in Vancouver, March 28 was the submission date, and March 31st is the acknowledgement date.
It's not a glitch. The status is going to be the same until a decision is made on your application. My account is also showing the same, applied on March 28th in person in Vancouver.