IRCC number (for checking VO and others): Call 1888-242-2100 -> 1 - enter & confirm UCI -> 3 -> 2-> 0
KAI Method (Inland Applicant Only, and only if it's taking too long for P2): In order to get P2 email faster, you can reply your P1 email to other VOs (instead of replying to sender VO).
Email addresses from IRCC (that accepts emails and replies)