Over deduction

Good day I am logging this complaint on behalf of my husband who has two Autopage accounts. The first one number *** he pays +-R600 a month his other number *** he pays +-R400 a month for the month of November a deduction of over a R1000 was taken for the second contract he only pays +-R400 on. He reversed the deduction and called the help center they confirmed that it was so high due to subscriptions though he had none he then confirmed that we would go into the store to confirm what's going on after that someone phoned again and said it's the new installment of the contract which we couldn't understand the next day we went into the store and the lady there couldn't tell us what was wrong with the acount then said it was due to an over use of data however he only reserves 1G of data and when it's done it's done you can't go over we left without knowing why he had to pay so much still. This morning another deduction of over R600 was made without confirming with him if it can be made and for what it's made for, since there weren't enough funds in the account the unauthorised debit did not go down and my husband's account is now in a minus due to autopage.