It's the same in the UK. My phone bill is normally £12 a month - recently it was maybe £1 more. I checked what had happened - I'd accidentally sent a single mms to someone by including a link to google maps in a text message which got expanded into an image.

There's a reason WhatsApp is basically the only messaging people do here - carrier based messaging is an exploitative money trap.

I've seen cheap contracts where SMS is unlimited, but never anything with unlimited MMS (Netherlands).

I actually just checked what I currently pay for an MMS and youfone.nl doesn't even mention it in the price list. Since I have to ask, I guess I can't afford it :-)