$540 via promo credit when you add a new smartphone line with your own 4G/5G smartphone on postpaid Unlimited Plus plan between 5/18/23 - 5/31/23 & port-in req'd. Promo credit applied over 36 months; promo credits end if eligibility requirements are no longer met.
The phone has an email option, but I don't know if it works or what the charge is.
Email will use data, and email on a basic phone is not your best option. To send a photo to an email address, send it as a text message, but put the email address in the TO: field instead of a phone number.