You can get a free loaner phone if you send the phone from repair at a koodo kiosk. I have to question whether it is worthwhile to repair the galaxy ace though. It will likely cost at least $75 to repair an out of warranty phone. The phone cost $150 new 2 years ago, and you can buy a new moto g, which is a massively better phone, for only $150 on the tab now.
Unfortunately It depends if there are any loaner phones available at the time, however if there are any available I'm sure they'll be glad to let you have a loaner. But keep in mind the loaners usually aren't very good, well at least for me anyway.