Help! Our developer is AWOL and I'm trying to change an e-mail setting

As I mentioned in the title, our developer is AWOL (abroad and not responding to our many attempts at contacting him) and while I can do much of what I need to do with regard to the contents of our site, I'm at a loss on other things. The current problem is that the contact e-mail (info@) is directing e-mails to the wrong member of our club. I looked through the settings and while the contact form is set to send messages directly to me, anything sent to the info@ address isn't landing in my mailbox. After much searching, I have the suspicion that this can't be changed in the developer interface, rather that I need access to our actual Contao account details.

Could somebody please direct me to the right setting or tell me how I can get access to our club's account, even without the developer who signed us up?

Thanks for any helpful advice you might be able to share!

germanjen