Connecting your savings account may lead to missed or failed payments, as most savings accounts do not have "chequing privileges" or do not permit pre-authorized debit transactions.
To ensure your payments are processed successfully and to continue building your credit history, please connect your chequing account for the pre-authorized debit payments to Credit Builder. This will help you avoid any disruptions in your payment schedule.
For more troubleshooting, check out this article: I'm having trouble connecting my bank account for Credit Builder. What should I do?
Note: Depending on when you joined, you may have signed up with a card rather than a bank account. If you pay by card, the bank-related content mentioned above will not apply to your account.