How do I contact Support

I am trying to connect my bank account using instructions at https://support.udemy.com/hc/en-us/articles/1500002043081-Instructor-Payment-Methods-How-to-Set-up-Direct-Deposit-U-S-Only. The online form tells me that I have an invalid routing number. The routing number is correct. I use it everywhere. So now I am trying to follow instructions to contact support following instructions at https://support.udemy.com/hc/en-us/articles/21521030699287-How-to-Contact-Udemy-Support. These also dont work. There is nothing in the help center. There seems to be no way to contact support. The contact us button on the right also doesnt work. I see errors in the network tab which seem to indicate that the chat widget has issues and doesnt work. This leaves me with no way to resolve my issue.