Primative bad service

To simply change my debit account with Standard Bank Home loans is mission impossible. Firstly the call centre staff are extremely rude. I sent an email with the required information and a copy of the new account that they need to debit. I received and sms a few days later advising that i must fax a letter. Which i then did. My account has not been debited. I phoned them and their response was that they did not receive the documents. THIS IS WHY WE USE EMAILS to get a delivery report and a read response. I sent a fax twice and received a delivery report. Why do I need to write out a letter is i can email a letter with a copy of the new account statement. <br> <br> To simply change my banking details its has cost me over 60 min in call fees and wasted my time. <br> <br> Find a way to simply this.