UNACCEPTABLE CELL PHONE BILL

My cell phone account (contract) should be R450. Last month a debit order went through for R1 843.44, this month for R1 310.08. I lodged a dispute on 26 March, 16 April and 23 April. I was told that I phoned my daughter, 16 years old, overseas, who's sitting in the next room via roaming, which I'm not suppose to be registered for. Another consultant told me it was my data. Not one person seems to be able to see what's going on. Not one single response from Autopage AT ALL. They are happy that I pay the bill.