How does Blesta handle usernames? (had problem w/ service activation)

[sunrisepro]

Yesterday a new client had trouble buying hosting as she was using capital letters in the domain name. Once that was resolved, she was able to buy hosting & pay the pro-rated invoice. I assumed that the service had been activated but this time it had not. When I tried to manually activate, it said the username was already in use but I don't have any other client with that username (in WHM or Blesta). Does Blesta somehow 'remember' incomplete purchase attempts, including username?

Ideally I can avoid this in the future by providing a message to customers on the order form to use lowercase letters - how can I do that?

[sunrisepro]

I searched in WHM & there was no account with the username in question.

[Paul]

You can check your module log to see if it was cPanel that returned the error. Tools > Logs > Module log, click the cPanel rows to expand and display the raw input/output. You should be able to see the cPanel servers response.