Interac Online is where you use your bank card/account to fund your QuadrigaCX account much like using a credit card to make a purchase online. Interac Online is only compatible with TD, BMO, Scotia and participating credit union bank cards without a Visa or MasterCard logo on them. The process is quite simple; start by selecting Interac Online as the funding option, enter the amount you would like to fund for and then CTPayment, Interac's secure payment gateway partner, will prompt you to login to your online banking to authorize the instant real-time debit of funds from your bank account which will then be credited to your QuadrigaCX balance for trading.
List of financial institutions that support Intearc Online: http://interac.ca/en/interac-online-consumer.html
About co-bdaged (Visa/MasterCard) debit cards: http://interac.ca/en/co-badged-cards.html