change of mailing address on Temporary resident visa and spousal immigration

[SI]

Hi;
can anyone pls guide how to notify the canadian high commision Islamabad of change of mailing address on visit visa and spousal immigration applications?
thanks

[sttn]

Send an ecas email. When you check your immigration file status, the option to change the address is available right below your current address.! Click on that and follow the instructions. Easy