27-12-2016 06:57 PM
27-12-2016 07:50 PM - edited 27-12-2016 07:51 PM
Try switching off, taking the SIM out, gently cleaning it, reinserting it, switching on and see if that helps at all.
Can you try the SIM in another unlocked phone?
If that doesn't help then you probably need to contact 48 support about this:
http://www.48months.ie/help#contact-us
Hope this helps.