...what?

Could be asking for an SMS to Email gateway address. Probably isn't though and the form designer was just drinking on the job.

Amateur web dev copy and pasted the phone field and forgot to change 'type=phone' to 'type=email's for the email input.

<input type="tel" value="Enter Email Address">

Instructions unclear

Fine, 123456789@+3141... (

Are you stupid or something? You clearly have to put your username, duh