UBC ePayment can process payment transactions using debit cards (e.g. with 13-digits) from participating Banks within the Interac network only.

A list of Interac's Participating Institutions can be found here: https://www.interac.ca/en/consumers/products/interac-debit/e-commerce/#f...
Note that any debit card issued by an institution not listed may not be accepted e.g., ScotiaBank

Subsequently, payment cards e.g.,16-digit Bank Visa Debit cards (or ANY Visa/Mastercard Debit card) cannot be processed as Interac Online

Updated: January 11, 2023

Effective January 6, 2023, Royal Bank of Canada had discontinued accepting online Interac payments. Details here: https://www.rbcroyalbank.com/banking-services/interac-online.html