Just got a picture text now too. Old phone so have no idea what the pic is of.
Brisbane, Melbourne and now Sydney.
Only time I've recently given out my number was for a Gumtree ad and an ebay sale.
Just thought I'd mention this as it might help track who is sending these spam pictures.

Got a picture message from this number. I have an old phone which won't open this and I do not know who this number is.

Me too!

Getting a lot of picture text messages from this number. I have an old phone which won't open this. But still the number does not show up in my contacts.