08-30-2018 09:46 AM - edited 01-05-2022 01:35 AM
08-30-2018 09:52 AM - edited 08-30-2018 09:53 AM
Usually data stops when it is used up. If you say the add-on shows up in selfserve and shows 356mb remaining it's might be an account issue which mods need to look Into but before contacting them I would troubleshoot your hardware.
Toggle airplane mode
Reboot phone
Double-check apn
Try sim in different phone