Try going to your settings, select cellular network, make sure your data option is enabled, and check to make sure you have the correct APN settings https://productioncommunity.publicmobile.ca/t5/Phones-Hardware/How-do-I-set-up-data-APN-on-my-smartph...
Check the message settings on your phone, that it's set to accept MMS, or try restarting your phone, I find that works with android phones. If that doesn't work then there could be a service disruption in your area.
It usually depends, from my personal experience, they usually answer within 48 hours, last time I emailed a moderator , response was within the same day
