mobile data is not working

[rls1300]

i have a galaxy s3 maybe a year old. up until last week i was able to use 3 different apps to listen to or access a radio station, talk radio, and news channel while out walking my dog, but now none of them will connect without wi-fi. they work at home while using wi-fi, but when i disable wi-fi they don't.

 

[Rukbat]

Are you sure you don't have 3G disabled? If not, contact your carrier and ask them to check your account provisioning.