Please see this announcement:
The help chat ticket should close when they see that it has been fixed.
You can open another ticket in another browser. For example, I do most on my computer, so I can open another on my phone.
Alternatively, you can also request modifications using this form:
If you use that form, it does work, but the options I can choose never match what I want to do. We have been told to just pick something to open the ticket, and then explain in the text box.
If the acknowledgement email asks for verification of credentials, ignore it. A human will respond.