Picture message add ons

My child has a Sayph phone, a Samsung that he can call and text on, but can’t use social media apps like WhatsApp. It would be really great to either have mms messaging included in the unlimited texts tariff that he has, or to have the option to be able to buy mms add-ons.

MMS is legacy technology and will be discontinued at some point as RCS has replaced it
You can use mms if you top up account
Best to have RCS chats enabled or get WhatsApp or Facebook messenger etc