I am a June Applicant got my Test Invite in Dec(6 months).The agent on the call told me that my application was sent to Niagara Office. She also mentioned that most of the online applications are sent to NS(Sydney) but mine was moved to Niagara and she has NO idea why that was done. She specified that the processing time for citizenship is 24 months, and we need to wait since they have a huge backlog. How about you? Did you get an invite?
Ottawa, Niagara falls as such are relative slow processing office. You may have to wait a bit more to get test invite.