Canada visa for H1b stamping

hi I am planning to go to Canada for H1b Stamping. I have applied for Canada visit visa on may 9th online. I have received emails about updates untill 15th of may and havent heard anything since then. my application have exceeded the 20 day processing window and still no updates. Did anyone face the same situation and also does anyone know the phone number that i can talk to someone about this?