So received a email response from the agent today, and as below. Guess it's "Wait-and-watch" for some more time!
----------------------------------
Thank you for contacting Immigration, Refugees and Citizenship Canada (IRCC).
We have verified the information you provided and can confirm that your application is not available in the system yet.
However, rest assured that this situation is normal since the responsible office is currently processing applications received before January 15, 2020.
When an application is received by IRCC, it can take several weeks or months before the processing begins. There will be no record in the system until the processing has begun.
We invite you to contact the mail service you used in order to make sure that your application was indeed received by our processing office.
Additionally, due to the ongoing situation related to the novel coronavirus (COVID-19), some IRCC offices are currently operating with reduced or critical staff only.
We are working on processing applications as quickly as possible; however,
processing times are affected and any disruptions caused by COVID-19 may not be reflected accurately on our website. We will make all the necessary efforts to process your application as soon as possible.
In the meantime, we invite you to visit our website for
the steps following the submission of a Citizenship application.
We hope the information provided is helpful in assisting you with your enquiry.
We would also like to suggest the following online services that might be helpful to you with any immigration, refugee and/or citizenship future requests:
Sincerely,
----------------------------------