Handed over without proper notification

How can the amount on statement almost be 7 times more then the collection amount? How can a company ask R86.25 for one sms? How can opening a file be double the collection amount? How can you charge for tracing if next of kin was not even informed about this outstanding account was tracing really done? Not a single email was send out for this accounts. How can a collection amount of R403 go to R3952.95 in three months this is day light *******.