Hello,
Need advice! I am out of country for the test date

Have to reschedule. What is the best way to do it?
a) to reply to the test invite email with reschedule request (goes to local Edmonton IRCC office, I suppose)
b) to submit Web Form with the same request (I assume it goes to Sydney first and then forwarded to local office?)
c) phone IRCC directly and reschedule with the agent
I am kind of tempted to do all three! Seems like an overkill but I'd better be safe than sorry.
Please update my record:
I have received an email with the Test Invite on January 31st scheduled for February 13, 2018 (ecas is updated as well and shows the same info).
Spread Sheet Row #
317 at current xls
ID:
koziamorda1
Location: Edmonton
App. Type: single
In Process: Dec 06, 2017
Test Invite :
Jan 31, 2018
Test Date:
Feb 13, 2018
Thank you!