bad service

<p>I have not had 4G connection on my phone since 6am this morning - I was then notified that I have reached my credit limit??? How is this possible when i am ON CONTRACT and i top up on airtime when I need it??? So now I can't use my phone to call or text, especially since I work weekends and need it, simply due to incompetence??? This is the last straw. I have also been trying to get through to customer service and i cannot get ahold of anyone to help me? Talk about putting customers first </p>