Poor service

Today I had a family emergency in Cape Town, hence I performed an instant money transfer after 8am on the internet banking platform by transferring the money to the recipient,my sister with the intention that she will get the money as soon as she goes to an ATM. She confirmed receipt of the voucher number on her cellphone number and I have her the PIN, however when she tried to draw the money, the ATM gave her an error message “ voucher has been used”. Now I ask you how is this possible when the cellphonethat has been provided is in the hands of the recipient and after numerous frustrating calls made to your Money transfer department I am still faced with this dilemma- my sister did not get this money which I promised her is instant, my bank account has been debited with the amount I transfer plus the fee and my sister is in limbo. What a waste, I would have thought since it is not a transfer between bank accounts understanding time frames for these hence I opted for instant money transfer we would have moved forwards by now, how disappointing Standard Bank, your online services are pathetic including your call centers, more money wasted on calls on my part. The best you can do is to highlight to the consumer that this type of transaction is it viable over weekends. Very unprofessional service, need to look at changing my bank.