waste of airtime

i received a missed call from capitec bank. i called them back 4 times. i was placed on hold for 29 minutes the one time, and cut off the other times. when i finally got through, they were closed. they called me, i returned the call. i used 120 rand airtime. a) get more consultants or b) cut someone off after 5 minutes waiting c) give an option for a consultant to call you back. i am truly upset and irritated.