Can't get MMS messages working

I got my FreeUp SIM in the mail yesterday. Calls and normal texts work fine but MMS isn't quite working. I sent an image from a GV number and I got a message with an option to download but it just hangs. I've set the APN setting per FreeUp's instructions but no dice.

MMS requires data, free account has none.

Yea I did read about it requiring data. I also read that it's usually handled differently vs. normal Internet data and thus often times doesn't count against a data cap. Anyways, I did get a response from FreeUp and they confirmed that MMS is not available on the free tier.