Inconvenience caused by Standard bank by telling me lies that they have released my funds while they didn't

I called Standard bank call center on Saturday the 1st of June 2019, to request funds from my access save account and I was assisted by Ahmed with the call reference number ********** 340, after keeping me waiting for about and hour, he came back to me saying that the funds have been successfully transferred to my cheque account and would reflect within 10 to 15mins. I didn't check my account balance and went straight to the petrol station to fill up only to find that I still had not enough funds and the money was not transferred. I had to call again yesterday the 2nd of June 2019, I spoke to Theo Masina and his team leader Prudence Malaka with call ref: ********** 190 who told me that their system does not allow them to release funds immediately on Sundays and that I need to wait for 24hrs for my funds to reflect. This has inconvenienced me so much that I had to give the petrol attendant my phone while I drive around looking for money to pay for the fuel which was already filled in the car all because someone didn't do their job at Standard bank, they would not take the blame and told me that there's nothing they can do at the time because their system restricts them from making transfers on Sundays.

This is not the first runaround I got from Standard bank, they're so inefficient. I am really starting to question the decision I made to switch my banking to Standard bank as I have to suffer when it comes to accessing my funds.