It took 9-10 hours for my Mom’s link. I submitted webforms for both at same time (5-6 mins difference). But didn’t receive for my dad at that time. I waited for 10-11 days . I sent them few emails on different email addresses,tried to contact them on Facebook, Twitter and Instagram. They replied on twitter and Facebook, requested more information etc, but did nothing, no reply to emails.
Then I filled new webform for dad and received payment link in 9-10 hours at same time as was for mom ( 4:20 AM EST) . I did pay in 2 hours and received AWB No. in next hour. Now both passports are with IRCC.
Second time, it was so quick.
After 15 days , Now I am receiving all emails replies that We hope your query has been resolved lol
When they picked up my mom’s passport, I asked my mom dad to write a note on height and eye colour paper that payment link(along with Pr ref. No. & ticket no.) for courier service for principal applicant not received yet.