While sending gic through sbi there is a column for remitter address.. put your address exactly as in passport (the address you used while creating Scotia account)
They started sending out LOAs.. but very less.. check with your agent..
and hose who got LOA have deadline of 29th of October... So they will send some more after that
Wait for another one week.. if there isn't any update from centennial ,then go with lambton, if that course is okay for you... It's getting very tough to get loa for pg courses