20-04-2015 08:06 AM
20-04-2015 09:05 AM - edited 20-04-2015 09:06 AM
Assuming that your APN/internet settings don't change then you may need to contact 48 support about this issue:
http://www.48months.ie/help#ask-a-48-agent
Is there any way that you could try your SIM and data access (which would require configuration of the APN/internet settings) in another unlocked phone just to check that it's not a SIM problem?
Did it ever work reliably for you?
Hope this helps.