Poor service from.Standard bank

Hi let me get right to it. Saturday 8 February 2020 me and my wife was travelling for jhb to Durban we stop at vaal one stop petrol station paying for our fuel and using my wife's standard bank cheque card cause i have put the money in there so we can stay with in our budget. The guy at the garage put fuel and now it's time to pay he swip the cheque card it says that my wife have exceeded her limit but wen we look on the banking app it's show that the money was taken out and no we're near her daily limited but wen you use a atm to draw cash from the atm it show that the fund's was used we called standard bank call centre they told us that there is nothing they can do cause they have a problem on there side bear in mind that the person working for standard bank can see that the money was not taken out but at the atm it show that the money was taken out. This post a big risk personally for you as a customer at your bank cause the bank keeps your money for a fee but when they go offline and if you don't have cash on you that can be a real big problem, my wife have given the person at standard bank call centre her details to call back just in case she gets cut off and she did got cut off and nobody from the bank call back to query if we have been assist. Remember this your money that you keep at the bank for a fee and when the bank have a problem and you need money your money you can't take out and there is nothing you can do where's the justice in that. I managed to use my reserve cash just so we can get home. Standard bank is the worst bank don't use it.