Mexico can't be reached by phone , MP can contact IRCC via a special line to get infos on your name and status but that's all , unless webform and email
And the Call Center of IRCC , the time your app is at VO don't do a thing. Always mention to contact Mexico.
Did you ordered Notes ? (ATIP)
I think that would be your best solution , at least to get some clues on what has been done.
If you are representative
https://atip-aiprp.apps.gc.ca/atip/welcome.do
Permanent Residence
Family Class Sponsorship
- Electronic Notes from agent
is 5.00$ , done usually by 30 days.