change of monthly debit

I called old mutual 's customer care today ***) i was holding for 10 minutes waiting to get through an agent my airtime nearly finished . I then decided to call branch in braamfontein ***) that was the worse idea , their phone rang for a minute and it suddenly when to user busy , they were cutting off my line and i then called again for the second and third time still the same **** . i dont get it such a company their service is very bad .<br> <br> My Reason for calling old mutual , i just opened an investment account with old mutual so i called them today to change my debit amount before the debit goes off 26 April 2016. I'm very frustrated because i couldn't get help from this people. it was just impossible for them to just answer their phones