Instant money not so instant

Hi, I received a payment from my brother using instant money. Now the problem is that I have been unable to withdraw the funds even though my voucher and pin are correct. It was even blocked yesterday. I am also a Standard Bank user and have sent money to my sister using the same facility every month and she herself has informed me that it's quite a nightmare. Take a look at FNB eWallet and get some pointers as it works PERFECTLY. WE TRY TO USE SUCH TO MAKE SURE MONEY IS SENT AND RECEIVED ASAP WITH NO HASSLE AT ALL then you go and block it for 24hours. Please don't offer these things if you have not fine tuned them to perfection, Very unprofessional.