JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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We can change that for you. Just get back to us with 3 usernames (from most preferred to least preferred). So we can try your 2nd or 3rd option if the 1st one was already taken by another user.
You may also do this check from your end by going to the SIGNUP page and type in your desired username so you can see if it's available or not.