How can I fix an invalid transit number issue during account setup?

[Taman1]

Hello, I was hoping if someone could help me this issue I am facing. I am trying to complete my account setup, but it shows that transit number is invalid. I have tried putting a 7 in the end, as well as a 0 in the start and end, but nothing seems to work. If someone could please guide me as to what to do.

Thank you !!