Suspended again for NO reason

I have one account with two lines - a cellphone which my husband uses as well as 3g. My account got suspended last week, but my husband made a full payment on Friday and the suspension on both the devices was lifted on Friday. Now all of a sudden from today my husband's phone doesn't work, so he phoned the call center only to be informed that his line has been suspended again! What the hell for??? My 3g is working fine!! Only the cellphone not working! He asked the consultant why and she couldn't give him a reason. She said that she would do the activation, but it will take 24-48 hours!!! This is pathetic!!! Now my husband will be without a phone for NO reason because someone is ***********!!! Can someone please fix this asap!!!! And can someone please get back to me and tell me the reason for this suspension!!!