Standard bank online customer no-service

Standard bank does not seem to be concerned about helping their clients,i have a issue that i need to sort out and i cant do it without the banks help.Im 90 persent of my time at work so its not easy just to go to a branch thats why the online service is there but i have phoned and could not be helped on the Saterday that i phoned because of department that can help me was closed because of the public holiday.The lady that i spoke to was surpose to phone me back on Monday but never did,that was more than a month ago.I have send many emails exsplaining what needed to be sorted out,i had a reply once saying my email was send to the relevent department and that was the last.Im not getting any feed back or assistance from the bank.Phoning the is also imposible because you are always holding forever due to high call volumes.I didnt want to lay a complaint on here because overall im happy with Standard bank but maybe ill be lucky and get some assistance.