"Cannot locate dashboard account" flow for Free users

### Existing documentation URL(s)

- https://developers.cloudflare.com/support/troubleshooting/general-troubleshooting/cannot-locate-dashboard-account/#free-accounts

### What changes are you suggesting?

This is based on observations from the Community Discord.

People who land on "Cannot locate dashboard account" do so because they *just opened a ticket*, however the page assumes that Free users want support.

This leads to the following:
1. Free user creates registrar/billing ticket (which they can do)
2. Ticket is created, they get redirected to docs
3. They are confused, think they didn't submit a ticket and join one of the communities (e.g. Discord)
4. The user shares their Ticket content again
5. The community has to explain that they already have an open ticket and will get replies via Email.

This entire flow should stop at step 2. The documentation page should properly explain that a ticket has already been created and that while they cannot access the help center, they will still receive responses via email (and can also respond by replying to said emails).

### Additional information

_No response_