Appointment slots for H1B stamping at Calgary, Canada

[rumjhum]

Hi All,

I reside in the US and want to get my H1B visa renewal stamping in Calgary, Canada. While scheduling appointments, the website shows that there are 'No Appointments available' . I am guessing that they haven't released appointment slots. Does any one know when do they release appointment slots? If they release it online at a particular time, I can check right on that timne and book it. It is a bit urgent? Is there any other way in which it can be done?

Thanks in advance,
Rumjhum