You should contact Koodo directly with a request for refund. You can send a private message through Facebook or Twitter, or call #227 on your phone. Expect long wait times if you call, as Koodo is still digging out from the Christmas & new Year's promotions.
Phone response time for me was over an hour. Unacceptable! Koodo should have an email address for various types of queries. A customer should not have to use social media to contact a business they are paying good money to manage their cell phone business.