Standard bank internet banking is poor

I fail to understand how when one transfers money from one standard bank account to another standard bank account the funds will take up 24 hours or even more. this is what i have been told by the numerous call centre agents at Standard bank. transactions done on a sunday does not count as a business day, yet the bank is open on a sunday? further to this i was told that the bank does not do value transactions on a sunday only service? does it take that long for someone to get access to money that is supposed to be in their account immediately. i have used internet banking numerously when i was with previous banks and i never experienced a problem of this nature. transacting between accounts within the same bank takes longer. i am now waiting over 30 hours for the funds to reflect and nothing!!!! all the agents do is apologies and tell me it will reflect tomorrow. i was now told i will only get my money after 2 days? what nonsense standard bank to standard bank takes 48hours? Poor services from standard bank i need access to the funds today NOT tomorrow!!!! in situations when people are in emergencies i cannot see standard bank as being efficient