Rakuten credit card application

I filled out the rakuten application online, but I was not able to complete one field: 携帯メール、スマホメール。

I was t sure what it meant and later found out it's an email address from one of the phone companies. I don't have one. I don't know anyone who has one.

Is there any way around this?

Thanks to all in advance…

by 14zorgon