I didn't know jmp.chat sold data-only sims. I will need to look into that. I have been looking into a sim card for emergency only. I am thinking of keeping my current mobile provider, as it's only $13.60 or so a month (talk and text only) and only use it for emergencies, such as my car breaking down and needing to contact someone. The rest of time I will use wifi data either at home, at work, restaurants, etc.