once again this happens

My cell has been barred once again ...... i was called telling me that i have been credited with the amount i over paid . Yet all three of my lines are barred , the other two contracts did not recieve the minutes and data as per the initial contract and i had asked Cellc to cancel the one contract that was upgraded without my knowledge . This really needs to stop as my business is on stand still because i cannot recieve any calls anymore and i doubt you want to be liable for loss of business . Sort this out immediately it is really getting to me , the service level has dropped drastically