Blocked phone

Data usage limit was reached, but no notifications were sent so I was unaware of the problem. Thought my account was in arrears (no e mail / post of bill) and made a payment but when I phoned customer service to log my complaint and get help, they said that because my Father is the account holder, they cannot give me any information regarding why the phone/account has been blocked. After my Father made a call and gave all the relevant information required, my phone is still blocked and it is now going on 4 days without a phone.